1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blink_manager;
17mod clangd_ext;
18mod code_context_menus;
19pub mod commit_tooltip;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod indent_guides;
29mod inlay_hint_cache;
30pub mod items;
31mod linked_editing_ranges;
32mod lsp_ext;
33mod mouse_context_menu;
34pub mod movement;
35mod persistence;
36mod proposed_changes_editor;
37mod rust_analyzer_ext;
38pub mod scroll;
39mod selections_collection;
40pub mod tasks;
41
42#[cfg(test)]
43mod editor_tests;
44#[cfg(test)]
45mod inline_completion_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50pub(crate) use actions::*;
51pub use actions::{AcceptEditPrediction, OpenExcerpts, OpenExcerptsSplit};
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use buffer_diff::DiffHunkSecondaryStatus;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::{AcceptEditPredictionBinding, LineWithInvisibles, PositionMap};
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::StringMatchCandidate;
72
73use code_context_menus::{
74 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
75 CompletionsMenu, ContextMenuOrigin,
76};
77use git::blame::GitBlame;
78use gpui::{
79 div, impl_actions, point, prelude::*, pulsating_between, px, relative, size, Action, Animation,
80 AnimationExt, AnyElement, App, AsyncWindowContext, AvailableSpace, Background, Bounds,
81 ClipboardEntry, ClipboardItem, Context, DispatchPhase, ElementId, Entity, EntityInputHandler,
82 EventEmitter, FocusHandle, FocusOutEvent, Focusable, FontId, FontWeight, Global,
83 HighlightStyle, Hsla, InteractiveText, KeyContext, Modifiers, MouseButton, MouseDownEvent,
84 PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText, Subscription,
85 Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle,
86 WeakEntity, WeakFocusHandle, Window,
87};
88use highlight_matching_bracket::refresh_matching_bracket_highlights;
89use hover_popover::{hide_hover, HoverState};
90use indent_guides::ActiveIndentGuidesState;
91use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
92pub use inline_completion::Direction;
93use inline_completion::{EditPredictionProvider, InlineCompletionProviderHandle};
94pub use items::MAX_TAB_TITLE_LEN;
95use itertools::Itertools;
96use language::{
97 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
98 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
99 CompletionDocumentation, CursorShape, Diagnostic, DiskState, EditPredictionsMode, EditPreview,
100 HighlightedText, IndentKind, IndentSize, Language, OffsetRangeExt, Point, Selection,
101 SelectionGoal, TextObject, TransactionId, TreeSitterOptions,
102};
103use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
104use linked_editing_ranges::refresh_linked_ranges;
105use mouse_context_menu::MouseContextMenu;
106pub use proposed_changes_editor::{
107 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
108};
109use similar::{ChangeTag, TextDiff};
110use std::iter::Peekable;
111use task::{ResolvedTask, TaskTemplate, TaskVariables};
112
113use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
114pub use lsp::CompletionContext;
115use lsp::{
116 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
117 LanguageServerId, LanguageServerName,
118};
119
120use language::BufferSnapshot;
121use movement::TextLayoutDetails;
122pub use multi_buffer::{
123 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, RowInfo,
124 ToOffset, ToPoint,
125};
126use multi_buffer::{
127 ExcerptInfo, ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow,
128 ToOffsetUtf16,
129};
130use project::{
131 lsp_store::{FormatTrigger, LspFormatTarget, OpenLspBufferHandle},
132 project_settings::{GitGutterSetting, ProjectSettings},
133 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
134 LspStore, PrepareRenameResponse, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
135};
136use rand::prelude::*;
137use rpc::{proto::*, ErrorExt};
138use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
139use selections_collection::{
140 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
141};
142use serde::{Deserialize, Serialize};
143use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
144use smallvec::SmallVec;
145use snippet::Snippet;
146use std::{
147 any::TypeId,
148 borrow::Cow,
149 cell::RefCell,
150 cmp::{self, Ordering, Reverse},
151 mem,
152 num::NonZeroU32,
153 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
154 path::{Path, PathBuf},
155 rc::Rc,
156 sync::Arc,
157 time::{Duration, Instant},
158};
159pub use sum_tree::Bias;
160use sum_tree::TreeMap;
161use text::{BufferId, OffsetUtf16, Rope};
162use theme::{ActiveTheme, PlayerColor, StatusColors, SyntaxTheme, ThemeColors, ThemeSettings};
163use ui::{
164 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize, Key,
165 Tooltip,
166};
167use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
168use workspace::item::{ItemHandle, PreviewTabsSettings};
169use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
170use workspace::{
171 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
172};
173use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
174
175use crate::hover_links::{find_url, find_url_from_range};
176use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
177
178pub const FILE_HEADER_HEIGHT: u32 = 2;
179pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
180pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
181pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
182const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
183const MAX_LINE_LEN: usize = 1024;
184const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
185const MAX_SELECTION_HISTORY_LEN: usize = 1024;
186pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
187#[doc(hidden)]
188pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub(crate) const EDIT_PREDICTION_KEY_CONTEXT: &str = "edit_prediction";
194pub(crate) const EDIT_PREDICTION_CONFLICT_KEY_CONTEXT: &str = "edit_prediction_conflict";
195
196pub fn render_parsed_markdown(
197 element_id: impl Into<ElementId>,
198 parsed: &language::ParsedMarkdown,
199 editor_style: &EditorStyle,
200 workspace: Option<WeakEntity<Workspace>>,
201 cx: &mut App,
202) -> InteractiveText {
203 let code_span_background_color = cx
204 .theme()
205 .colors()
206 .editor_document_highlight_read_background;
207
208 let highlights = gpui::combine_highlights(
209 parsed.highlights.iter().filter_map(|(range, highlight)| {
210 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
211 Some((range.clone(), highlight))
212 }),
213 parsed
214 .regions
215 .iter()
216 .zip(&parsed.region_ranges)
217 .filter_map(|(region, range)| {
218 if region.code {
219 Some((
220 range.clone(),
221 HighlightStyle {
222 background_color: Some(code_span_background_color),
223 ..Default::default()
224 },
225 ))
226 } else {
227 None
228 }
229 }),
230 );
231
232 let mut links = Vec::new();
233 let mut link_ranges = Vec::new();
234 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
235 if let Some(link) = region.link.clone() {
236 links.push(link);
237 link_ranges.push(range.clone());
238 }
239 }
240
241 InteractiveText::new(
242 element_id,
243 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
244 )
245 .on_click(
246 link_ranges,
247 move |clicked_range_ix, window, cx| match &links[clicked_range_ix] {
248 markdown::Link::Web { url } => cx.open_url(url),
249 markdown::Link::Path { path } => {
250 if let Some(workspace) = &workspace {
251 _ = workspace.update(cx, |workspace, cx| {
252 workspace
253 .open_abs_path(path.clone(), false, window, cx)
254 .detach();
255 });
256 }
257 }
258 },
259 )
260}
261
262#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
263pub enum InlayId {
264 InlineCompletion(usize),
265 Hint(usize),
266}
267
268impl InlayId {
269 fn id(&self) -> usize {
270 match self {
271 Self::InlineCompletion(id) => *id,
272 Self::Hint(id) => *id,
273 }
274 }
275}
276
277enum DocumentHighlightRead {}
278enum DocumentHighlightWrite {}
279enum InputComposition {}
280
281#[derive(Debug, Copy, Clone, PartialEq, Eq)]
282pub enum Navigated {
283 Yes,
284 No,
285}
286
287impl Navigated {
288 pub fn from_bool(yes: bool) -> Navigated {
289 if yes {
290 Navigated::Yes
291 } else {
292 Navigated::No
293 }
294 }
295}
296
297pub fn init_settings(cx: &mut App) {
298 EditorSettings::register(cx);
299}
300
301pub fn init(cx: &mut App) {
302 init_settings(cx);
303
304 workspace::register_project_item::<Editor>(cx);
305 workspace::FollowableViewRegistry::register::<Editor>(cx);
306 workspace::register_serializable_item::<Editor>(cx);
307
308 cx.observe_new(
309 |workspace: &mut Workspace, _: Option<&mut Window>, _cx: &mut Context<Workspace>| {
310 workspace.register_action(Editor::new_file);
311 workspace.register_action(Editor::new_file_vertical);
312 workspace.register_action(Editor::new_file_horizontal);
313 workspace.register_action(Editor::cancel_language_server_work);
314 },
315 )
316 .detach();
317
318 cx.on_action(move |_: &workspace::NewFile, cx| {
319 let app_state = workspace::AppState::global(cx);
320 if let Some(app_state) = app_state.upgrade() {
321 workspace::open_new(
322 Default::default(),
323 app_state,
324 cx,
325 |workspace, window, cx| {
326 Editor::new_file(workspace, &Default::default(), window, cx)
327 },
328 )
329 .detach();
330 }
331 });
332 cx.on_action(move |_: &workspace::NewWindow, cx| {
333 let app_state = workspace::AppState::global(cx);
334 if let Some(app_state) = app_state.upgrade() {
335 workspace::open_new(
336 Default::default(),
337 app_state,
338 cx,
339 |workspace, window, cx| {
340 cx.activate(true);
341 Editor::new_file(workspace, &Default::default(), window, cx)
342 },
343 )
344 .detach();
345 }
346 });
347}
348
349pub struct SearchWithinRange;
350
351trait InvalidationRegion {
352 fn ranges(&self) -> &[Range<Anchor>];
353}
354
355#[derive(Clone, Debug, PartialEq)]
356pub enum SelectPhase {
357 Begin {
358 position: DisplayPoint,
359 add: bool,
360 click_count: usize,
361 },
362 BeginColumnar {
363 position: DisplayPoint,
364 reset: bool,
365 goal_column: u32,
366 },
367 Extend {
368 position: DisplayPoint,
369 click_count: usize,
370 },
371 Update {
372 position: DisplayPoint,
373 goal_column: u32,
374 scroll_delta: gpui::Point<f32>,
375 },
376 End,
377}
378
379#[derive(Clone, Debug)]
380pub enum SelectMode {
381 Character,
382 Word(Range<Anchor>),
383 Line(Range<Anchor>),
384 All,
385}
386
387#[derive(Copy, Clone, PartialEq, Eq, Debug)]
388pub enum EditorMode {
389 SingleLine { auto_width: bool },
390 AutoHeight { max_lines: usize },
391 Full,
392}
393
394#[derive(Copy, Clone, Debug)]
395pub enum SoftWrap {
396 /// Prefer not to wrap at all.
397 ///
398 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
399 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
400 GitDiff,
401 /// Prefer a single line generally, unless an overly long line is encountered.
402 None,
403 /// Soft wrap lines that exceed the editor width.
404 EditorWidth,
405 /// Soft wrap lines at the preferred line length.
406 Column(u32),
407 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
408 Bounded(u32),
409}
410
411#[derive(Clone)]
412pub struct EditorStyle {
413 pub background: Hsla,
414 pub local_player: PlayerColor,
415 pub text: TextStyle,
416 pub scrollbar_width: Pixels,
417 pub syntax: Arc<SyntaxTheme>,
418 pub status: StatusColors,
419 pub inlay_hints_style: HighlightStyle,
420 pub inline_completion_styles: InlineCompletionStyles,
421 pub unnecessary_code_fade: f32,
422}
423
424impl Default for EditorStyle {
425 fn default() -> Self {
426 Self {
427 background: Hsla::default(),
428 local_player: PlayerColor::default(),
429 text: TextStyle::default(),
430 scrollbar_width: Pixels::default(),
431 syntax: Default::default(),
432 // HACK: Status colors don't have a real default.
433 // We should look into removing the status colors from the editor
434 // style and retrieve them directly from the theme.
435 status: StatusColors::dark(),
436 inlay_hints_style: HighlightStyle::default(),
437 inline_completion_styles: InlineCompletionStyles {
438 insertion: HighlightStyle::default(),
439 whitespace: HighlightStyle::default(),
440 },
441 unnecessary_code_fade: Default::default(),
442 }
443 }
444}
445
446pub fn make_inlay_hints_style(cx: &mut App) -> HighlightStyle {
447 let show_background = language_settings::language_settings(None, None, cx)
448 .inlay_hints
449 .show_background;
450
451 HighlightStyle {
452 color: Some(cx.theme().status().hint),
453 background_color: show_background.then(|| cx.theme().status().hint_background),
454 ..HighlightStyle::default()
455 }
456}
457
458pub fn make_suggestion_styles(cx: &mut App) -> InlineCompletionStyles {
459 InlineCompletionStyles {
460 insertion: HighlightStyle {
461 color: Some(cx.theme().status().predictive),
462 ..HighlightStyle::default()
463 },
464 whitespace: HighlightStyle {
465 background_color: Some(cx.theme().status().created_background),
466 ..HighlightStyle::default()
467 },
468 }
469}
470
471type CompletionId = usize;
472
473pub(crate) enum EditDisplayMode {
474 TabAccept,
475 DiffPopover,
476 Inline,
477}
478
479enum InlineCompletion {
480 Edit {
481 edits: Vec<(Range<Anchor>, String)>,
482 edit_preview: Option<EditPreview>,
483 display_mode: EditDisplayMode,
484 snapshot: BufferSnapshot,
485 },
486 Move {
487 target: Anchor,
488 snapshot: BufferSnapshot,
489 },
490}
491
492struct InlineCompletionState {
493 inlay_ids: Vec<InlayId>,
494 completion: InlineCompletion,
495 completion_id: Option<SharedString>,
496 invalidation_range: Range<Anchor>,
497}
498
499enum EditPredictionSettings {
500 Disabled,
501 Enabled {
502 show_in_menu: bool,
503 preview_requires_modifier: bool,
504 },
505}
506
507enum InlineCompletionHighlight {}
508
509pub enum MenuInlineCompletionsPolicy {
510 Never,
511 ByProvider,
512}
513
514pub enum EditPredictionPreview {
515 /// Modifier is not pressed
516 Inactive,
517 /// Modifier pressed
518 Active {
519 previous_scroll_position: Option<ScrollAnchor>,
520 },
521}
522
523#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
524struct EditorActionId(usize);
525
526impl EditorActionId {
527 pub fn post_inc(&mut self) -> Self {
528 let answer = self.0;
529
530 *self = Self(answer + 1);
531
532 Self(answer)
533 }
534}
535
536// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
537// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
538
539type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
540type GutterHighlight = (fn(&App) -> Hsla, Arc<[Range<Anchor>]>);
541
542#[derive(Default)]
543struct ScrollbarMarkerState {
544 scrollbar_size: Size<Pixels>,
545 dirty: bool,
546 markers: Arc<[PaintQuad]>,
547 pending_refresh: Option<Task<Result<()>>>,
548}
549
550impl ScrollbarMarkerState {
551 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
552 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
553 }
554}
555
556#[derive(Clone, Debug)]
557struct RunnableTasks {
558 templates: Vec<(TaskSourceKind, TaskTemplate)>,
559 offset: MultiBufferOffset,
560 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
561 column: u32,
562 // Values of all named captures, including those starting with '_'
563 extra_variables: HashMap<String, String>,
564 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
565 context_range: Range<BufferOffset>,
566}
567
568impl RunnableTasks {
569 fn resolve<'a>(
570 &'a self,
571 cx: &'a task::TaskContext,
572 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
573 self.templates.iter().filter_map(|(kind, template)| {
574 template
575 .resolve_task(&kind.to_id_base(), cx)
576 .map(|task| (kind.clone(), task))
577 })
578 }
579}
580
581#[derive(Clone)]
582struct ResolvedTasks {
583 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
584 position: Anchor,
585}
586#[derive(Copy, Clone, Debug)]
587struct MultiBufferOffset(usize);
588#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
589struct BufferOffset(usize);
590
591// Addons allow storing per-editor state in other crates (e.g. Vim)
592pub trait Addon: 'static {
593 fn extend_key_context(&self, _: &mut KeyContext, _: &App) {}
594
595 fn render_buffer_header_controls(
596 &self,
597 _: &ExcerptInfo,
598 _: &Window,
599 _: &App,
600 ) -> Option<AnyElement> {
601 None
602 }
603
604 fn to_any(&self) -> &dyn std::any::Any;
605}
606
607#[derive(Debug, Copy, Clone, PartialEq, Eq)]
608pub enum IsVimMode {
609 Yes,
610 No,
611}
612
613/// Zed's primary implementation of text input, allowing users to edit a [`MultiBuffer`].
614///
615/// See the [module level documentation](self) for more information.
616pub struct Editor {
617 focus_handle: FocusHandle,
618 last_focused_descendant: Option<WeakFocusHandle>,
619 /// The text buffer being edited
620 buffer: Entity<MultiBuffer>,
621 /// Map of how text in the buffer should be displayed.
622 /// Handles soft wraps, folds, fake inlay text insertions, etc.
623 pub display_map: Entity<DisplayMap>,
624 pub selections: SelectionsCollection,
625 pub scroll_manager: ScrollManager,
626 /// When inline assist editors are linked, they all render cursors because
627 /// typing enters text into each of them, even the ones that aren't focused.
628 pub(crate) show_cursor_when_unfocused: bool,
629 columnar_selection_tail: Option<Anchor>,
630 add_selections_state: Option<AddSelectionsState>,
631 select_next_state: Option<SelectNextState>,
632 select_prev_state: Option<SelectNextState>,
633 selection_history: SelectionHistory,
634 autoclose_regions: Vec<AutocloseRegion>,
635 snippet_stack: InvalidationStack<SnippetState>,
636 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
637 ime_transaction: Option<TransactionId>,
638 active_diagnostics: Option<ActiveDiagnosticGroup>,
639 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
640
641 // TODO: make this a access method
642 pub project: Option<Entity<Project>>,
643 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
644 completion_provider: Option<Box<dyn CompletionProvider>>,
645 collaboration_hub: Option<Box<dyn CollaborationHub>>,
646 blink_manager: Entity<BlinkManager>,
647 show_cursor_names: bool,
648 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
649 pub show_local_selections: bool,
650 mode: EditorMode,
651 show_breadcrumbs: bool,
652 show_gutter: bool,
653 show_scrollbars: bool,
654 show_line_numbers: Option<bool>,
655 use_relative_line_numbers: Option<bool>,
656 show_git_diff_gutter: Option<bool>,
657 show_code_actions: Option<bool>,
658 show_runnables: Option<bool>,
659 show_wrap_guides: Option<bool>,
660 show_indent_guides: Option<bool>,
661 placeholder_text: Option<Arc<str>>,
662 highlight_order: usize,
663 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
664 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
665 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
666 scrollbar_marker_state: ScrollbarMarkerState,
667 active_indent_guides_state: ActiveIndentGuidesState,
668 nav_history: Option<ItemNavHistory>,
669 context_menu: RefCell<Option<CodeContextMenu>>,
670 mouse_context_menu: Option<MouseContextMenu>,
671 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
672 signature_help_state: SignatureHelpState,
673 auto_signature_help: Option<bool>,
674 find_all_references_task_sources: Vec<Anchor>,
675 next_completion_id: CompletionId,
676 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
677 code_actions_task: Option<Task<Result<()>>>,
678 document_highlights_task: Option<Task<()>>,
679 linked_editing_range_task: Option<Task<Option<()>>>,
680 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
681 pending_rename: Option<RenameState>,
682 searchable: bool,
683 cursor_shape: CursorShape,
684 current_line_highlight: Option<CurrentLineHighlight>,
685 collapse_matches: bool,
686 autoindent_mode: Option<AutoindentMode>,
687 workspace: Option<(WeakEntity<Workspace>, Option<WorkspaceId>)>,
688 input_enabled: bool,
689 use_modal_editing: bool,
690 read_only: bool,
691 leader_peer_id: Option<PeerId>,
692 remote_id: Option<ViewId>,
693 hover_state: HoverState,
694 pending_mouse_down: Option<Rc<RefCell<Option<MouseDownEvent>>>>,
695 gutter_hovered: bool,
696 hovered_link_state: Option<HoveredLinkState>,
697 edit_prediction_provider: Option<RegisteredInlineCompletionProvider>,
698 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
699 active_inline_completion: Option<InlineCompletionState>,
700 /// Used to prevent flickering as the user types while the menu is open
701 stale_inline_completion_in_menu: Option<InlineCompletionState>,
702 edit_prediction_settings: EditPredictionSettings,
703 inline_completions_hidden_for_vim_mode: bool,
704 show_inline_completions_override: Option<bool>,
705 menu_inline_completions_policy: MenuInlineCompletionsPolicy,
706 edit_prediction_preview: EditPredictionPreview,
707 edit_prediction_cursor_on_leading_whitespace: bool,
708 edit_prediction_requires_modifier_in_leading_space: bool,
709 inlay_hint_cache: InlayHintCache,
710 next_inlay_id: usize,
711 _subscriptions: Vec<Subscription>,
712 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
713 gutter_dimensions: GutterDimensions,
714 style: Option<EditorStyle>,
715 text_style_refinement: Option<TextStyleRefinement>,
716 next_editor_action_id: EditorActionId,
717 editor_actions:
718 Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut Window, &mut Context<Self>)>>>>,
719 use_autoclose: bool,
720 use_auto_surround: bool,
721 auto_replace_emoji_shortcode: bool,
722 show_git_blame_gutter: bool,
723 show_git_blame_inline: bool,
724 show_git_blame_inline_delay_task: Option<Task<()>>,
725 distinguish_unstaged_diff_hunks: bool,
726 git_blame_inline_enabled: bool,
727 serialize_dirty_buffers: bool,
728 show_selection_menu: Option<bool>,
729 blame: Option<Entity<GitBlame>>,
730 blame_subscription: Option<Subscription>,
731 custom_context_menu: Option<
732 Box<
733 dyn 'static
734 + Fn(
735 &mut Self,
736 DisplayPoint,
737 &mut Window,
738 &mut Context<Self>,
739 ) -> Option<Entity<ui::ContextMenu>>,
740 >,
741 >,
742 last_bounds: Option<Bounds<Pixels>>,
743 last_position_map: Option<Rc<PositionMap>>,
744 expect_bounds_change: Option<Bounds<Pixels>>,
745 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
746 tasks_update_task: Option<Task<()>>,
747 in_project_search: bool,
748 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
749 breadcrumb_header: Option<String>,
750 focused_block: Option<FocusedBlock>,
751 next_scroll_position: NextScrollCursorCenterTopBottom,
752 addons: HashMap<TypeId, Box<dyn Addon>>,
753 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
754 selection_mark_mode: bool,
755 toggle_fold_multiple_buffers: Task<()>,
756 _scroll_cursor_center_top_bottom_task: Task<()>,
757}
758
759#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
760enum NextScrollCursorCenterTopBottom {
761 #[default]
762 Center,
763 Top,
764 Bottom,
765}
766
767impl NextScrollCursorCenterTopBottom {
768 fn next(&self) -> Self {
769 match self {
770 Self::Center => Self::Top,
771 Self::Top => Self::Bottom,
772 Self::Bottom => Self::Center,
773 }
774 }
775}
776
777#[derive(Clone)]
778pub struct EditorSnapshot {
779 pub mode: EditorMode,
780 show_gutter: bool,
781 show_line_numbers: Option<bool>,
782 show_git_diff_gutter: Option<bool>,
783 show_code_actions: Option<bool>,
784 show_runnables: Option<bool>,
785 git_blame_gutter_max_author_length: Option<usize>,
786 pub display_snapshot: DisplaySnapshot,
787 pub placeholder_text: Option<Arc<str>>,
788 is_focused: bool,
789 scroll_anchor: ScrollAnchor,
790 ongoing_scroll: OngoingScroll,
791 current_line_highlight: CurrentLineHighlight,
792 gutter_hovered: bool,
793}
794
795const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
796
797#[derive(Default, Debug, Clone, Copy)]
798pub struct GutterDimensions {
799 pub left_padding: Pixels,
800 pub right_padding: Pixels,
801 pub width: Pixels,
802 pub margin: Pixels,
803 pub git_blame_entries_width: Option<Pixels>,
804}
805
806impl GutterDimensions {
807 /// The full width of the space taken up by the gutter.
808 pub fn full_width(&self) -> Pixels {
809 self.margin + self.width
810 }
811
812 /// The width of the space reserved for the fold indicators,
813 /// use alongside 'justify_end' and `gutter_width` to
814 /// right align content with the line numbers
815 pub fn fold_area_width(&self) -> Pixels {
816 self.margin + self.right_padding
817 }
818}
819
820#[derive(Debug)]
821pub struct RemoteSelection {
822 pub replica_id: ReplicaId,
823 pub selection: Selection<Anchor>,
824 pub cursor_shape: CursorShape,
825 pub peer_id: PeerId,
826 pub line_mode: bool,
827 pub participant_index: Option<ParticipantIndex>,
828 pub user_name: Option<SharedString>,
829}
830
831#[derive(Clone, Debug)]
832struct SelectionHistoryEntry {
833 selections: Arc<[Selection<Anchor>]>,
834 select_next_state: Option<SelectNextState>,
835 select_prev_state: Option<SelectNextState>,
836 add_selections_state: Option<AddSelectionsState>,
837}
838
839enum SelectionHistoryMode {
840 Normal,
841 Undoing,
842 Redoing,
843}
844
845#[derive(Clone, PartialEq, Eq, Hash)]
846struct HoveredCursor {
847 replica_id: u16,
848 selection_id: usize,
849}
850
851impl Default for SelectionHistoryMode {
852 fn default() -> Self {
853 Self::Normal
854 }
855}
856
857#[derive(Default)]
858struct SelectionHistory {
859 #[allow(clippy::type_complexity)]
860 selections_by_transaction:
861 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
862 mode: SelectionHistoryMode,
863 undo_stack: VecDeque<SelectionHistoryEntry>,
864 redo_stack: VecDeque<SelectionHistoryEntry>,
865}
866
867impl SelectionHistory {
868 fn insert_transaction(
869 &mut self,
870 transaction_id: TransactionId,
871 selections: Arc<[Selection<Anchor>]>,
872 ) {
873 self.selections_by_transaction
874 .insert(transaction_id, (selections, None));
875 }
876
877 #[allow(clippy::type_complexity)]
878 fn transaction(
879 &self,
880 transaction_id: TransactionId,
881 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
882 self.selections_by_transaction.get(&transaction_id)
883 }
884
885 #[allow(clippy::type_complexity)]
886 fn transaction_mut(
887 &mut self,
888 transaction_id: TransactionId,
889 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
890 self.selections_by_transaction.get_mut(&transaction_id)
891 }
892
893 fn push(&mut self, entry: SelectionHistoryEntry) {
894 if !entry.selections.is_empty() {
895 match self.mode {
896 SelectionHistoryMode::Normal => {
897 self.push_undo(entry);
898 self.redo_stack.clear();
899 }
900 SelectionHistoryMode::Undoing => self.push_redo(entry),
901 SelectionHistoryMode::Redoing => self.push_undo(entry),
902 }
903 }
904 }
905
906 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
907 if self
908 .undo_stack
909 .back()
910 .map_or(true, |e| e.selections != entry.selections)
911 {
912 self.undo_stack.push_back(entry);
913 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
914 self.undo_stack.pop_front();
915 }
916 }
917 }
918
919 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
920 if self
921 .redo_stack
922 .back()
923 .map_or(true, |e| e.selections != entry.selections)
924 {
925 self.redo_stack.push_back(entry);
926 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
927 self.redo_stack.pop_front();
928 }
929 }
930 }
931}
932
933struct RowHighlight {
934 index: usize,
935 range: Range<Anchor>,
936 color: Hsla,
937 should_autoscroll: bool,
938}
939
940#[derive(Clone, Debug)]
941struct AddSelectionsState {
942 above: bool,
943 stack: Vec<usize>,
944}
945
946#[derive(Clone)]
947struct SelectNextState {
948 query: AhoCorasick,
949 wordwise: bool,
950 done: bool,
951}
952
953impl std::fmt::Debug for SelectNextState {
954 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
955 f.debug_struct(std::any::type_name::<Self>())
956 .field("wordwise", &self.wordwise)
957 .field("done", &self.done)
958 .finish()
959 }
960}
961
962#[derive(Debug)]
963struct AutocloseRegion {
964 selection_id: usize,
965 range: Range<Anchor>,
966 pair: BracketPair,
967}
968
969#[derive(Debug)]
970struct SnippetState {
971 ranges: Vec<Vec<Range<Anchor>>>,
972 active_index: usize,
973 choices: Vec<Option<Vec<String>>>,
974}
975
976#[doc(hidden)]
977pub struct RenameState {
978 pub range: Range<Anchor>,
979 pub old_name: Arc<str>,
980 pub editor: Entity<Editor>,
981 block_id: CustomBlockId,
982}
983
984struct InvalidationStack<T>(Vec<T>);
985
986struct RegisteredInlineCompletionProvider {
987 provider: Arc<dyn InlineCompletionProviderHandle>,
988 _subscription: Subscription,
989}
990
991#[derive(Debug)]
992struct ActiveDiagnosticGroup {
993 primary_range: Range<Anchor>,
994 primary_message: String,
995 group_id: usize,
996 blocks: HashMap<CustomBlockId, Diagnostic>,
997 is_valid: bool,
998}
999
1000#[derive(Serialize, Deserialize, Clone, Debug)]
1001pub struct ClipboardSelection {
1002 pub len: usize,
1003 pub is_entire_line: bool,
1004 pub first_line_indent: u32,
1005}
1006
1007#[derive(Debug)]
1008pub(crate) struct NavigationData {
1009 cursor_anchor: Anchor,
1010 cursor_position: Point,
1011 scroll_anchor: ScrollAnchor,
1012 scroll_top_row: u32,
1013}
1014
1015#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1016pub enum GotoDefinitionKind {
1017 Symbol,
1018 Declaration,
1019 Type,
1020 Implementation,
1021}
1022
1023#[derive(Debug, Clone)]
1024enum InlayHintRefreshReason {
1025 Toggle(bool),
1026 SettingsChange(InlayHintSettings),
1027 NewLinesShown,
1028 BufferEdited(HashSet<Arc<Language>>),
1029 RefreshRequested,
1030 ExcerptsRemoved(Vec<ExcerptId>),
1031}
1032
1033impl InlayHintRefreshReason {
1034 fn description(&self) -> &'static str {
1035 match self {
1036 Self::Toggle(_) => "toggle",
1037 Self::SettingsChange(_) => "settings change",
1038 Self::NewLinesShown => "new lines shown",
1039 Self::BufferEdited(_) => "buffer edited",
1040 Self::RefreshRequested => "refresh requested",
1041 Self::ExcerptsRemoved(_) => "excerpts removed",
1042 }
1043 }
1044}
1045
1046pub enum FormatTarget {
1047 Buffers,
1048 Ranges(Vec<Range<MultiBufferPoint>>),
1049}
1050
1051pub(crate) struct FocusedBlock {
1052 id: BlockId,
1053 focus_handle: WeakFocusHandle,
1054}
1055
1056#[derive(Clone)]
1057enum JumpData {
1058 MultiBufferRow {
1059 row: MultiBufferRow,
1060 line_offset_from_top: u32,
1061 },
1062 MultiBufferPoint {
1063 excerpt_id: ExcerptId,
1064 position: Point,
1065 anchor: text::Anchor,
1066 line_offset_from_top: u32,
1067 },
1068}
1069
1070pub enum MultibufferSelectionMode {
1071 First,
1072 All,
1073}
1074
1075impl Editor {
1076 pub fn single_line(window: &mut Window, cx: &mut Context<Self>) -> Self {
1077 let buffer = cx.new(|cx| Buffer::local("", cx));
1078 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1079 Self::new(
1080 EditorMode::SingleLine { auto_width: false },
1081 buffer,
1082 None,
1083 false,
1084 window,
1085 cx,
1086 )
1087 }
1088
1089 pub fn multi_line(window: &mut Window, cx: &mut Context<Self>) -> Self {
1090 let buffer = cx.new(|cx| Buffer::local("", cx));
1091 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1092 Self::new(EditorMode::Full, buffer, None, false, window, cx)
1093 }
1094
1095 pub fn auto_width(window: &mut Window, cx: &mut Context<Self>) -> Self {
1096 let buffer = cx.new(|cx| Buffer::local("", cx));
1097 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1098 Self::new(
1099 EditorMode::SingleLine { auto_width: true },
1100 buffer,
1101 None,
1102 false,
1103 window,
1104 cx,
1105 )
1106 }
1107
1108 pub fn auto_height(max_lines: usize, window: &mut Window, cx: &mut Context<Self>) -> Self {
1109 let buffer = cx.new(|cx| Buffer::local("", cx));
1110 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1111 Self::new(
1112 EditorMode::AutoHeight { max_lines },
1113 buffer,
1114 None,
1115 false,
1116 window,
1117 cx,
1118 )
1119 }
1120
1121 pub fn for_buffer(
1122 buffer: Entity<Buffer>,
1123 project: Option<Entity<Project>>,
1124 window: &mut Window,
1125 cx: &mut Context<Self>,
1126 ) -> Self {
1127 let buffer = cx.new(|cx| MultiBuffer::singleton(buffer, cx));
1128 Self::new(EditorMode::Full, buffer, project, false, window, cx)
1129 }
1130
1131 pub fn for_multibuffer(
1132 buffer: Entity<MultiBuffer>,
1133 project: Option<Entity<Project>>,
1134 show_excerpt_controls: bool,
1135 window: &mut Window,
1136 cx: &mut Context<Self>,
1137 ) -> Self {
1138 Self::new(
1139 EditorMode::Full,
1140 buffer,
1141 project,
1142 show_excerpt_controls,
1143 window,
1144 cx,
1145 )
1146 }
1147
1148 pub fn clone(&self, window: &mut Window, cx: &mut Context<Self>) -> Self {
1149 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1150 let mut clone = Self::new(
1151 self.mode,
1152 self.buffer.clone(),
1153 self.project.clone(),
1154 show_excerpt_controls,
1155 window,
1156 cx,
1157 );
1158 self.display_map.update(cx, |display_map, cx| {
1159 let snapshot = display_map.snapshot(cx);
1160 clone.display_map.update(cx, |display_map, cx| {
1161 display_map.set_state(&snapshot, cx);
1162 });
1163 });
1164 clone.selections.clone_state(&self.selections);
1165 clone.scroll_manager.clone_state(&self.scroll_manager);
1166 clone.searchable = self.searchable;
1167 clone
1168 }
1169
1170 pub fn new(
1171 mode: EditorMode,
1172 buffer: Entity<MultiBuffer>,
1173 project: Option<Entity<Project>>,
1174 show_excerpt_controls: bool,
1175 window: &mut Window,
1176 cx: &mut Context<Self>,
1177 ) -> Self {
1178 let style = window.text_style();
1179 let font_size = style.font_size.to_pixels(window.rem_size());
1180 let editor = cx.entity().downgrade();
1181 let fold_placeholder = FoldPlaceholder {
1182 constrain_width: true,
1183 render: Arc::new(move |fold_id, fold_range, _, cx| {
1184 let editor = editor.clone();
1185 div()
1186 .id(fold_id)
1187 .bg(cx.theme().colors().ghost_element_background)
1188 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1189 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1190 .rounded_sm()
1191 .size_full()
1192 .cursor_pointer()
1193 .child("⋯")
1194 .on_mouse_down(MouseButton::Left, |_, _, cx| cx.stop_propagation())
1195 .on_click(move |_, _window, cx| {
1196 editor
1197 .update(cx, |editor, cx| {
1198 editor.unfold_ranges(
1199 &[fold_range.start..fold_range.end],
1200 true,
1201 false,
1202 cx,
1203 );
1204 cx.stop_propagation();
1205 })
1206 .ok();
1207 })
1208 .into_any()
1209 }),
1210 merge_adjacent: true,
1211 ..Default::default()
1212 };
1213 let display_map = cx.new(|cx| {
1214 DisplayMap::new(
1215 buffer.clone(),
1216 style.font(),
1217 font_size,
1218 None,
1219 show_excerpt_controls,
1220 FILE_HEADER_HEIGHT,
1221 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1222 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1223 fold_placeholder,
1224 cx,
1225 )
1226 });
1227
1228 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1229
1230 let blink_manager = cx.new(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1231
1232 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1233 .then(|| language_settings::SoftWrap::None);
1234
1235 let mut project_subscriptions = Vec::new();
1236 if mode == EditorMode::Full {
1237 if let Some(project) = project.as_ref() {
1238 if buffer.read(cx).is_singleton() {
1239 project_subscriptions.push(cx.observe_in(project, window, |_, _, _, cx| {
1240 cx.emit(EditorEvent::TitleChanged);
1241 }));
1242 }
1243 project_subscriptions.push(cx.subscribe_in(
1244 project,
1245 window,
1246 |editor, _, event, window, cx| {
1247 if let project::Event::RefreshInlayHints = event {
1248 editor
1249 .refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1250 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1251 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1252 let focus_handle = editor.focus_handle(cx);
1253 if focus_handle.is_focused(window) {
1254 let snapshot = buffer.read(cx).snapshot();
1255 for (range, snippet) in snippet_edits {
1256 let editor_range =
1257 language::range_from_lsp(*range).to_offset(&snapshot);
1258 editor
1259 .insert_snippet(
1260 &[editor_range],
1261 snippet.clone(),
1262 window,
1263 cx,
1264 )
1265 .ok();
1266 }
1267 }
1268 }
1269 }
1270 },
1271 ));
1272 if let Some(task_inventory) = project
1273 .read(cx)
1274 .task_store()
1275 .read(cx)
1276 .task_inventory()
1277 .cloned()
1278 {
1279 project_subscriptions.push(cx.observe_in(
1280 &task_inventory,
1281 window,
1282 |editor, _, window, cx| {
1283 editor.tasks_update_task = Some(editor.refresh_runnables(window, cx));
1284 },
1285 ));
1286 }
1287 }
1288 }
1289
1290 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1291
1292 let inlay_hint_settings =
1293 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1294 let focus_handle = cx.focus_handle();
1295 cx.on_focus(&focus_handle, window, Self::handle_focus)
1296 .detach();
1297 cx.on_focus_in(&focus_handle, window, Self::handle_focus_in)
1298 .detach();
1299 cx.on_focus_out(&focus_handle, window, Self::handle_focus_out)
1300 .detach();
1301 cx.on_blur(&focus_handle, window, Self::handle_blur)
1302 .detach();
1303
1304 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1305 Some(false)
1306 } else {
1307 None
1308 };
1309
1310 let mut code_action_providers = Vec::new();
1311 if let Some(project) = project.clone() {
1312 get_uncommitted_diff_for_buffer(
1313 &project,
1314 buffer.read(cx).all_buffers(),
1315 buffer.clone(),
1316 cx,
1317 );
1318 code_action_providers.push(Rc::new(project) as Rc<_>);
1319 }
1320
1321 let mut this = Self {
1322 focus_handle,
1323 show_cursor_when_unfocused: false,
1324 last_focused_descendant: None,
1325 buffer: buffer.clone(),
1326 display_map: display_map.clone(),
1327 selections,
1328 scroll_manager: ScrollManager::new(cx),
1329 columnar_selection_tail: None,
1330 add_selections_state: None,
1331 select_next_state: None,
1332 select_prev_state: None,
1333 selection_history: Default::default(),
1334 autoclose_regions: Default::default(),
1335 snippet_stack: Default::default(),
1336 select_larger_syntax_node_stack: Vec::new(),
1337 ime_transaction: Default::default(),
1338 active_diagnostics: None,
1339 soft_wrap_mode_override,
1340 completion_provider: project.clone().map(|project| Box::new(project) as _),
1341 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1342 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1343 project,
1344 blink_manager: blink_manager.clone(),
1345 show_local_selections: true,
1346 show_scrollbars: true,
1347 mode,
1348 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1349 show_gutter: mode == EditorMode::Full,
1350 show_line_numbers: None,
1351 use_relative_line_numbers: None,
1352 show_git_diff_gutter: None,
1353 show_code_actions: None,
1354 show_runnables: None,
1355 show_wrap_guides: None,
1356 show_indent_guides,
1357 placeholder_text: None,
1358 highlight_order: 0,
1359 highlighted_rows: HashMap::default(),
1360 background_highlights: Default::default(),
1361 gutter_highlights: TreeMap::default(),
1362 scrollbar_marker_state: ScrollbarMarkerState::default(),
1363 active_indent_guides_state: ActiveIndentGuidesState::default(),
1364 nav_history: None,
1365 context_menu: RefCell::new(None),
1366 mouse_context_menu: None,
1367 completion_tasks: Default::default(),
1368 signature_help_state: SignatureHelpState::default(),
1369 auto_signature_help: None,
1370 find_all_references_task_sources: Vec::new(),
1371 next_completion_id: 0,
1372 next_inlay_id: 0,
1373 code_action_providers,
1374 available_code_actions: Default::default(),
1375 code_actions_task: Default::default(),
1376 document_highlights_task: Default::default(),
1377 linked_editing_range_task: Default::default(),
1378 pending_rename: Default::default(),
1379 searchable: true,
1380 cursor_shape: EditorSettings::get_global(cx)
1381 .cursor_shape
1382 .unwrap_or_default(),
1383 current_line_highlight: None,
1384 autoindent_mode: Some(AutoindentMode::EachLine),
1385 collapse_matches: false,
1386 workspace: None,
1387 input_enabled: true,
1388 use_modal_editing: mode == EditorMode::Full,
1389 read_only: false,
1390 use_autoclose: true,
1391 use_auto_surround: true,
1392 auto_replace_emoji_shortcode: false,
1393 leader_peer_id: None,
1394 remote_id: None,
1395 hover_state: Default::default(),
1396 pending_mouse_down: None,
1397 hovered_link_state: Default::default(),
1398 edit_prediction_provider: None,
1399 active_inline_completion: None,
1400 stale_inline_completion_in_menu: None,
1401 edit_prediction_preview: EditPredictionPreview::Inactive,
1402 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1403
1404 gutter_hovered: false,
1405 pixel_position_of_newest_cursor: None,
1406 last_bounds: None,
1407 last_position_map: None,
1408 expect_bounds_change: None,
1409 gutter_dimensions: GutterDimensions::default(),
1410 style: None,
1411 show_cursor_names: false,
1412 hovered_cursors: Default::default(),
1413 next_editor_action_id: EditorActionId::default(),
1414 editor_actions: Rc::default(),
1415 inline_completions_hidden_for_vim_mode: false,
1416 show_inline_completions_override: None,
1417 menu_inline_completions_policy: MenuInlineCompletionsPolicy::ByProvider,
1418 edit_prediction_settings: EditPredictionSettings::Disabled,
1419 edit_prediction_cursor_on_leading_whitespace: false,
1420 edit_prediction_requires_modifier_in_leading_space: true,
1421 custom_context_menu: None,
1422 show_git_blame_gutter: false,
1423 show_git_blame_inline: false,
1424 distinguish_unstaged_diff_hunks: false,
1425 show_selection_menu: None,
1426 show_git_blame_inline_delay_task: None,
1427 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1428 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1429 .session
1430 .restore_unsaved_buffers,
1431 blame: None,
1432 blame_subscription: None,
1433 tasks: Default::default(),
1434 _subscriptions: vec![
1435 cx.observe(&buffer, Self::on_buffer_changed),
1436 cx.subscribe_in(&buffer, window, Self::on_buffer_event),
1437 cx.observe_in(&display_map, window, Self::on_display_map_changed),
1438 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1439 cx.observe_global_in::<SettingsStore>(window, Self::settings_changed),
1440 cx.observe_window_activation(window, |editor, window, cx| {
1441 let active = window.is_window_active();
1442 editor.blink_manager.update(cx, |blink_manager, cx| {
1443 if active {
1444 blink_manager.enable(cx);
1445 } else {
1446 blink_manager.disable(cx);
1447 }
1448 });
1449 }),
1450 ],
1451 tasks_update_task: None,
1452 linked_edit_ranges: Default::default(),
1453 in_project_search: false,
1454 previous_search_ranges: None,
1455 breadcrumb_header: None,
1456 focused_block: None,
1457 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1458 addons: HashMap::default(),
1459 registered_buffers: HashMap::default(),
1460 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1461 selection_mark_mode: false,
1462 toggle_fold_multiple_buffers: Task::ready(()),
1463 text_style_refinement: None,
1464 };
1465 this.tasks_update_task = Some(this.refresh_runnables(window, cx));
1466 this._subscriptions.extend(project_subscriptions);
1467
1468 this.end_selection(window, cx);
1469 this.scroll_manager.show_scrollbar(window, cx);
1470
1471 if mode == EditorMode::Full {
1472 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1473 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1474
1475 if this.git_blame_inline_enabled {
1476 this.git_blame_inline_enabled = true;
1477 this.start_git_blame_inline(false, window, cx);
1478 }
1479
1480 if let Some(buffer) = buffer.read(cx).as_singleton() {
1481 if let Some(project) = this.project.as_ref() {
1482 let lsp_store = project.read(cx).lsp_store();
1483 let handle = lsp_store.update(cx, |lsp_store, cx| {
1484 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1485 });
1486 this.registered_buffers
1487 .insert(buffer.read(cx).remote_id(), handle);
1488 }
1489 }
1490 }
1491
1492 this.report_editor_event("Editor Opened", None, cx);
1493 this
1494 }
1495
1496 pub fn mouse_menu_is_focused(&self, window: &Window, cx: &App) -> bool {
1497 self.mouse_context_menu
1498 .as_ref()
1499 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(window))
1500 }
1501
1502 fn key_context(&self, window: &Window, cx: &App) -> KeyContext {
1503 self.key_context_internal(self.has_active_inline_completion(), window, cx)
1504 }
1505
1506 fn key_context_internal(
1507 &self,
1508 has_active_edit_prediction: bool,
1509 window: &Window,
1510 cx: &App,
1511 ) -> KeyContext {
1512 let mut key_context = KeyContext::new_with_defaults();
1513 key_context.add("Editor");
1514 let mode = match self.mode {
1515 EditorMode::SingleLine { .. } => "single_line",
1516 EditorMode::AutoHeight { .. } => "auto_height",
1517 EditorMode::Full => "full",
1518 };
1519
1520 if EditorSettings::jupyter_enabled(cx) {
1521 key_context.add("jupyter");
1522 }
1523
1524 key_context.set("mode", mode);
1525 if self.pending_rename.is_some() {
1526 key_context.add("renaming");
1527 }
1528
1529 match self.context_menu.borrow().as_ref() {
1530 Some(CodeContextMenu::Completions(_)) => {
1531 key_context.add("menu");
1532 key_context.add("showing_completions");
1533 }
1534 Some(CodeContextMenu::CodeActions(_)) => {
1535 key_context.add("menu");
1536 key_context.add("showing_code_actions")
1537 }
1538 None => {}
1539 }
1540
1541 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1542 if !self.focus_handle(cx).contains_focused(window, cx)
1543 || (self.is_focused(window) || self.mouse_menu_is_focused(window, cx))
1544 {
1545 for addon in self.addons.values() {
1546 addon.extend_key_context(&mut key_context, cx)
1547 }
1548 }
1549
1550 if let Some(extension) = self
1551 .buffer
1552 .read(cx)
1553 .as_singleton()
1554 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1555 {
1556 key_context.set("extension", extension.to_string());
1557 }
1558
1559 if has_active_edit_prediction {
1560 if self.edit_prediction_in_conflict() {
1561 key_context.add(EDIT_PREDICTION_CONFLICT_KEY_CONTEXT);
1562 } else {
1563 key_context.add(EDIT_PREDICTION_KEY_CONTEXT);
1564 key_context.add("copilot_suggestion");
1565 }
1566 }
1567
1568 if self.selection_mark_mode {
1569 key_context.add("selection_mode");
1570 }
1571
1572 key_context
1573 }
1574
1575 pub fn edit_prediction_in_conflict(&self) -> bool {
1576 if !self.show_edit_predictions_in_menu() {
1577 return false;
1578 }
1579
1580 let showing_completions = self
1581 .context_menu
1582 .borrow()
1583 .as_ref()
1584 .map_or(false, |context| {
1585 matches!(context, CodeContextMenu::Completions(_))
1586 });
1587
1588 showing_completions
1589 || self.edit_prediction_requires_modifier()
1590 // Require modifier key when the cursor is on leading whitespace, to allow `tab`
1591 // bindings to insert tab characters.
1592 || (self.edit_prediction_requires_modifier_in_leading_space && self.edit_prediction_cursor_on_leading_whitespace)
1593 }
1594
1595 pub fn accept_edit_prediction_keybind(
1596 &self,
1597 window: &Window,
1598 cx: &App,
1599 ) -> AcceptEditPredictionBinding {
1600 let key_context = self.key_context_internal(true, window, cx);
1601 let in_conflict = self.edit_prediction_in_conflict();
1602
1603 AcceptEditPredictionBinding(
1604 window
1605 .bindings_for_action_in_context(&AcceptEditPrediction, key_context)
1606 .into_iter()
1607 .filter(|binding| {
1608 !in_conflict
1609 || binding
1610 .keystrokes()
1611 .first()
1612 .map_or(false, |keystroke| keystroke.modifiers.modified())
1613 })
1614 .rev()
1615 .min_by_key(|binding| {
1616 binding
1617 .keystrokes()
1618 .first()
1619 .map_or(u8::MAX, |k| k.modifiers.number_of_modifiers())
1620 }),
1621 )
1622 }
1623
1624 pub fn new_file(
1625 workspace: &mut Workspace,
1626 _: &workspace::NewFile,
1627 window: &mut Window,
1628 cx: &mut Context<Workspace>,
1629 ) {
1630 Self::new_in_workspace(workspace, window, cx).detach_and_prompt_err(
1631 "Failed to create buffer",
1632 window,
1633 cx,
1634 |e, _, _| match e.error_code() {
1635 ErrorCode::RemoteUpgradeRequired => Some(format!(
1636 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1637 e.error_tag("required").unwrap_or("the latest version")
1638 )),
1639 _ => None,
1640 },
1641 );
1642 }
1643
1644 pub fn new_in_workspace(
1645 workspace: &mut Workspace,
1646 window: &mut Window,
1647 cx: &mut Context<Workspace>,
1648 ) -> Task<Result<Entity<Editor>>> {
1649 let project = workspace.project().clone();
1650 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1651
1652 cx.spawn_in(window, |workspace, mut cx| async move {
1653 let buffer = create.await?;
1654 workspace.update_in(&mut cx, |workspace, window, cx| {
1655 let editor =
1656 cx.new(|cx| Editor::for_buffer(buffer, Some(project.clone()), window, cx));
1657 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, window, cx);
1658 editor
1659 })
1660 })
1661 }
1662
1663 fn new_file_vertical(
1664 workspace: &mut Workspace,
1665 _: &workspace::NewFileSplitVertical,
1666 window: &mut Window,
1667 cx: &mut Context<Workspace>,
1668 ) {
1669 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), window, cx)
1670 }
1671
1672 fn new_file_horizontal(
1673 workspace: &mut Workspace,
1674 _: &workspace::NewFileSplitHorizontal,
1675 window: &mut Window,
1676 cx: &mut Context<Workspace>,
1677 ) {
1678 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), window, cx)
1679 }
1680
1681 fn new_file_in_direction(
1682 workspace: &mut Workspace,
1683 direction: SplitDirection,
1684 window: &mut Window,
1685 cx: &mut Context<Workspace>,
1686 ) {
1687 let project = workspace.project().clone();
1688 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1689
1690 cx.spawn_in(window, |workspace, mut cx| async move {
1691 let buffer = create.await?;
1692 workspace.update_in(&mut cx, move |workspace, window, cx| {
1693 workspace.split_item(
1694 direction,
1695 Box::new(
1696 cx.new(|cx| Editor::for_buffer(buffer, Some(project.clone()), window, cx)),
1697 ),
1698 window,
1699 cx,
1700 )
1701 })?;
1702 anyhow::Ok(())
1703 })
1704 .detach_and_prompt_err("Failed to create buffer", window, cx, |e, _, _| {
1705 match e.error_code() {
1706 ErrorCode::RemoteUpgradeRequired => Some(format!(
1707 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1708 e.error_tag("required").unwrap_or("the latest version")
1709 )),
1710 _ => None,
1711 }
1712 });
1713 }
1714
1715 pub fn leader_peer_id(&self) -> Option<PeerId> {
1716 self.leader_peer_id
1717 }
1718
1719 pub fn buffer(&self) -> &Entity<MultiBuffer> {
1720 &self.buffer
1721 }
1722
1723 pub fn workspace(&self) -> Option<Entity<Workspace>> {
1724 self.workspace.as_ref()?.0.upgrade()
1725 }
1726
1727 pub fn title<'a>(&self, cx: &'a App) -> Cow<'a, str> {
1728 self.buffer().read(cx).title(cx)
1729 }
1730
1731 pub fn snapshot(&self, window: &mut Window, cx: &mut App) -> EditorSnapshot {
1732 let git_blame_gutter_max_author_length = self
1733 .render_git_blame_gutter(cx)
1734 .then(|| {
1735 if let Some(blame) = self.blame.as_ref() {
1736 let max_author_length =
1737 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1738 Some(max_author_length)
1739 } else {
1740 None
1741 }
1742 })
1743 .flatten();
1744
1745 EditorSnapshot {
1746 mode: self.mode,
1747 show_gutter: self.show_gutter,
1748 show_line_numbers: self.show_line_numbers,
1749 show_git_diff_gutter: self.show_git_diff_gutter,
1750 show_code_actions: self.show_code_actions,
1751 show_runnables: self.show_runnables,
1752 git_blame_gutter_max_author_length,
1753 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1754 scroll_anchor: self.scroll_manager.anchor(),
1755 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1756 placeholder_text: self.placeholder_text.clone(),
1757 is_focused: self.focus_handle.is_focused(window),
1758 current_line_highlight: self
1759 .current_line_highlight
1760 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1761 gutter_hovered: self.gutter_hovered,
1762 }
1763 }
1764
1765 pub fn language_at<T: ToOffset>(&self, point: T, cx: &App) -> Option<Arc<Language>> {
1766 self.buffer.read(cx).language_at(point, cx)
1767 }
1768
1769 pub fn file_at<T: ToOffset>(&self, point: T, cx: &App) -> Option<Arc<dyn language::File>> {
1770 self.buffer.read(cx).read(cx).file_at(point).cloned()
1771 }
1772
1773 pub fn active_excerpt(
1774 &self,
1775 cx: &App,
1776 ) -> Option<(ExcerptId, Entity<Buffer>, Range<text::Anchor>)> {
1777 self.buffer
1778 .read(cx)
1779 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1780 }
1781
1782 pub fn mode(&self) -> EditorMode {
1783 self.mode
1784 }
1785
1786 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1787 self.collaboration_hub.as_deref()
1788 }
1789
1790 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1791 self.collaboration_hub = Some(hub);
1792 }
1793
1794 pub fn set_in_project_search(&mut self, in_project_search: bool) {
1795 self.in_project_search = in_project_search;
1796 }
1797
1798 pub fn set_custom_context_menu(
1799 &mut self,
1800 f: impl 'static
1801 + Fn(
1802 &mut Self,
1803 DisplayPoint,
1804 &mut Window,
1805 &mut Context<Self>,
1806 ) -> Option<Entity<ui::ContextMenu>>,
1807 ) {
1808 self.custom_context_menu = Some(Box::new(f))
1809 }
1810
1811 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1812 self.completion_provider = provider;
1813 }
1814
1815 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1816 self.semantics_provider.clone()
1817 }
1818
1819 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1820 self.semantics_provider = provider;
1821 }
1822
1823 pub fn set_edit_prediction_provider<T>(
1824 &mut self,
1825 provider: Option<Entity<T>>,
1826 window: &mut Window,
1827 cx: &mut Context<Self>,
1828 ) where
1829 T: EditPredictionProvider,
1830 {
1831 self.edit_prediction_provider =
1832 provider.map(|provider| RegisteredInlineCompletionProvider {
1833 _subscription: cx.observe_in(&provider, window, |this, _, window, cx| {
1834 if this.focus_handle.is_focused(window) {
1835 this.update_visible_inline_completion(window, cx);
1836 }
1837 }),
1838 provider: Arc::new(provider),
1839 });
1840 self.refresh_inline_completion(false, false, window, cx);
1841 }
1842
1843 pub fn placeholder_text(&self) -> Option<&str> {
1844 self.placeholder_text.as_deref()
1845 }
1846
1847 pub fn set_placeholder_text(
1848 &mut self,
1849 placeholder_text: impl Into<Arc<str>>,
1850 cx: &mut Context<Self>,
1851 ) {
1852 let placeholder_text = Some(placeholder_text.into());
1853 if self.placeholder_text != placeholder_text {
1854 self.placeholder_text = placeholder_text;
1855 cx.notify();
1856 }
1857 }
1858
1859 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut Context<Self>) {
1860 self.cursor_shape = cursor_shape;
1861
1862 // Disrupt blink for immediate user feedback that the cursor shape has changed
1863 self.blink_manager.update(cx, BlinkManager::show_cursor);
1864
1865 cx.notify();
1866 }
1867
1868 pub fn set_current_line_highlight(
1869 &mut self,
1870 current_line_highlight: Option<CurrentLineHighlight>,
1871 ) {
1872 self.current_line_highlight = current_line_highlight;
1873 }
1874
1875 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1876 self.collapse_matches = collapse_matches;
1877 }
1878
1879 fn register_buffers_with_language_servers(&mut self, cx: &mut Context<Self>) {
1880 let buffers = self.buffer.read(cx).all_buffers();
1881 let Some(lsp_store) = self.lsp_store(cx) else {
1882 return;
1883 };
1884 lsp_store.update(cx, |lsp_store, cx| {
1885 for buffer in buffers {
1886 self.registered_buffers
1887 .entry(buffer.read(cx).remote_id())
1888 .or_insert_with(|| {
1889 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1890 });
1891 }
1892 })
1893 }
1894
1895 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1896 if self.collapse_matches {
1897 return range.start..range.start;
1898 }
1899 range.clone()
1900 }
1901
1902 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut Context<Self>) {
1903 if self.display_map.read(cx).clip_at_line_ends != clip {
1904 self.display_map
1905 .update(cx, |map, _| map.clip_at_line_ends = clip);
1906 }
1907 }
1908
1909 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1910 self.input_enabled = input_enabled;
1911 }
1912
1913 pub fn set_inline_completions_hidden_for_vim_mode(
1914 &mut self,
1915 hidden: bool,
1916 window: &mut Window,
1917 cx: &mut Context<Self>,
1918 ) {
1919 if hidden != self.inline_completions_hidden_for_vim_mode {
1920 self.inline_completions_hidden_for_vim_mode = hidden;
1921 if hidden {
1922 self.update_visible_inline_completion(window, cx);
1923 } else {
1924 self.refresh_inline_completion(true, false, window, cx);
1925 }
1926 }
1927 }
1928
1929 pub fn set_menu_inline_completions_policy(&mut self, value: MenuInlineCompletionsPolicy) {
1930 self.menu_inline_completions_policy = value;
1931 }
1932
1933 pub fn set_autoindent(&mut self, autoindent: bool) {
1934 if autoindent {
1935 self.autoindent_mode = Some(AutoindentMode::EachLine);
1936 } else {
1937 self.autoindent_mode = None;
1938 }
1939 }
1940
1941 pub fn read_only(&self, cx: &App) -> bool {
1942 self.read_only || self.buffer.read(cx).read_only()
1943 }
1944
1945 pub fn set_read_only(&mut self, read_only: bool) {
1946 self.read_only = read_only;
1947 }
1948
1949 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1950 self.use_autoclose = autoclose;
1951 }
1952
1953 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1954 self.use_auto_surround = auto_surround;
1955 }
1956
1957 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1958 self.auto_replace_emoji_shortcode = auto_replace;
1959 }
1960
1961 pub fn toggle_inline_completions(
1962 &mut self,
1963 _: &ToggleEditPrediction,
1964 window: &mut Window,
1965 cx: &mut Context<Self>,
1966 ) {
1967 if self.show_inline_completions_override.is_some() {
1968 self.set_show_edit_predictions(None, window, cx);
1969 } else {
1970 let show_edit_predictions = !self.edit_predictions_enabled();
1971 self.set_show_edit_predictions(Some(show_edit_predictions), window, cx);
1972 }
1973 }
1974
1975 pub fn set_show_edit_predictions(
1976 &mut self,
1977 show_edit_predictions: Option<bool>,
1978 window: &mut Window,
1979 cx: &mut Context<Self>,
1980 ) {
1981 self.show_inline_completions_override = show_edit_predictions;
1982 self.refresh_inline_completion(false, true, window, cx);
1983 }
1984
1985 fn inline_completions_disabled_in_scope(
1986 &self,
1987 buffer: &Entity<Buffer>,
1988 buffer_position: language::Anchor,
1989 cx: &App,
1990 ) -> bool {
1991 let snapshot = buffer.read(cx).snapshot();
1992 let settings = snapshot.settings_at(buffer_position, cx);
1993
1994 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1995 return false;
1996 };
1997
1998 scope.override_name().map_or(false, |scope_name| {
1999 settings
2000 .edit_predictions_disabled_in
2001 .iter()
2002 .any(|s| s == scope_name)
2003 })
2004 }
2005
2006 pub fn set_use_modal_editing(&mut self, to: bool) {
2007 self.use_modal_editing = to;
2008 }
2009
2010 pub fn use_modal_editing(&self) -> bool {
2011 self.use_modal_editing
2012 }
2013
2014 fn selections_did_change(
2015 &mut self,
2016 local: bool,
2017 old_cursor_position: &Anchor,
2018 show_completions: bool,
2019 window: &mut Window,
2020 cx: &mut Context<Self>,
2021 ) {
2022 window.invalidate_character_coordinates();
2023
2024 // Copy selections to primary selection buffer
2025 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2026 if local {
2027 let selections = self.selections.all::<usize>(cx);
2028 let buffer_handle = self.buffer.read(cx).read(cx);
2029
2030 let mut text = String::new();
2031 for (index, selection) in selections.iter().enumerate() {
2032 let text_for_selection = buffer_handle
2033 .text_for_range(selection.start..selection.end)
2034 .collect::<String>();
2035
2036 text.push_str(&text_for_selection);
2037 if index != selections.len() - 1 {
2038 text.push('\n');
2039 }
2040 }
2041
2042 if !text.is_empty() {
2043 cx.write_to_primary(ClipboardItem::new_string(text));
2044 }
2045 }
2046
2047 if self.focus_handle.is_focused(window) && self.leader_peer_id.is_none() {
2048 self.buffer.update(cx, |buffer, cx| {
2049 buffer.set_active_selections(
2050 &self.selections.disjoint_anchors(),
2051 self.selections.line_mode,
2052 self.cursor_shape,
2053 cx,
2054 )
2055 });
2056 }
2057 let display_map = self
2058 .display_map
2059 .update(cx, |display_map, cx| display_map.snapshot(cx));
2060 let buffer = &display_map.buffer_snapshot;
2061 self.add_selections_state = None;
2062 self.select_next_state = None;
2063 self.select_prev_state = None;
2064 self.select_larger_syntax_node_stack.clear();
2065 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2066 self.snippet_stack
2067 .invalidate(&self.selections.disjoint_anchors(), buffer);
2068 self.take_rename(false, window, cx);
2069
2070 let new_cursor_position = self.selections.newest_anchor().head();
2071
2072 self.push_to_nav_history(
2073 *old_cursor_position,
2074 Some(new_cursor_position.to_point(buffer)),
2075 cx,
2076 );
2077
2078 if local {
2079 let new_cursor_position = self.selections.newest_anchor().head();
2080 let mut context_menu = self.context_menu.borrow_mut();
2081 let completion_menu = match context_menu.as_ref() {
2082 Some(CodeContextMenu::Completions(menu)) => Some(menu),
2083 _ => {
2084 *context_menu = None;
2085 None
2086 }
2087 };
2088 if let Some(buffer_id) = new_cursor_position.buffer_id {
2089 if !self.registered_buffers.contains_key(&buffer_id) {
2090 if let Some(lsp_store) = self.lsp_store(cx) {
2091 lsp_store.update(cx, |lsp_store, cx| {
2092 let Some(buffer) = self.buffer.read(cx).buffer(buffer_id) else {
2093 return;
2094 };
2095 self.registered_buffers.insert(
2096 buffer_id,
2097 lsp_store.register_buffer_with_language_servers(&buffer, cx),
2098 );
2099 })
2100 }
2101 }
2102 }
2103
2104 if let Some(completion_menu) = completion_menu {
2105 let cursor_position = new_cursor_position.to_offset(buffer);
2106 let (word_range, kind) =
2107 buffer.surrounding_word(completion_menu.initial_position, true);
2108 if kind == Some(CharKind::Word)
2109 && word_range.to_inclusive().contains(&cursor_position)
2110 {
2111 let mut completion_menu = completion_menu.clone();
2112 drop(context_menu);
2113
2114 let query = Self::completion_query(buffer, cursor_position);
2115 cx.spawn(move |this, mut cx| async move {
2116 completion_menu
2117 .filter(query.as_deref(), cx.background_executor().clone())
2118 .await;
2119
2120 this.update(&mut cx, |this, cx| {
2121 let mut context_menu = this.context_menu.borrow_mut();
2122 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
2123 else {
2124 return;
2125 };
2126
2127 if menu.id > completion_menu.id {
2128 return;
2129 }
2130
2131 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
2132 drop(context_menu);
2133 cx.notify();
2134 })
2135 })
2136 .detach();
2137
2138 if show_completions {
2139 self.show_completions(&ShowCompletions { trigger: None }, window, cx);
2140 }
2141 } else {
2142 drop(context_menu);
2143 self.hide_context_menu(window, cx);
2144 }
2145 } else {
2146 drop(context_menu);
2147 }
2148
2149 hide_hover(self, cx);
2150
2151 if old_cursor_position.to_display_point(&display_map).row()
2152 != new_cursor_position.to_display_point(&display_map).row()
2153 {
2154 self.available_code_actions.take();
2155 }
2156 self.refresh_code_actions(window, cx);
2157 self.refresh_document_highlights(cx);
2158 refresh_matching_bracket_highlights(self, window, cx);
2159 self.update_visible_inline_completion(window, cx);
2160 self.edit_prediction_requires_modifier_in_leading_space = true;
2161 linked_editing_ranges::refresh_linked_ranges(self, window, cx);
2162 if self.git_blame_inline_enabled {
2163 self.start_inline_blame_timer(window, cx);
2164 }
2165 }
2166
2167 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2168 cx.emit(EditorEvent::SelectionsChanged { local });
2169
2170 if self.selections.disjoint_anchors().len() == 1 {
2171 cx.emit(SearchEvent::ActiveMatchChanged)
2172 }
2173 cx.notify();
2174 }
2175
2176 pub fn change_selections<R>(
2177 &mut self,
2178 autoscroll: Option<Autoscroll>,
2179 window: &mut Window,
2180 cx: &mut Context<Self>,
2181 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2182 ) -> R {
2183 self.change_selections_inner(autoscroll, true, window, cx, change)
2184 }
2185
2186 pub fn change_selections_inner<R>(
2187 &mut self,
2188 autoscroll: Option<Autoscroll>,
2189 request_completions: bool,
2190 window: &mut Window,
2191 cx: &mut Context<Self>,
2192 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2193 ) -> R {
2194 let old_cursor_position = self.selections.newest_anchor().head();
2195 self.push_to_selection_history();
2196
2197 let (changed, result) = self.selections.change_with(cx, change);
2198
2199 if changed {
2200 if let Some(autoscroll) = autoscroll {
2201 self.request_autoscroll(autoscroll, cx);
2202 }
2203 self.selections_did_change(true, &old_cursor_position, request_completions, window, cx);
2204
2205 if self.should_open_signature_help_automatically(
2206 &old_cursor_position,
2207 self.signature_help_state.backspace_pressed(),
2208 cx,
2209 ) {
2210 self.show_signature_help(&ShowSignatureHelp, window, cx);
2211 }
2212 self.signature_help_state.set_backspace_pressed(false);
2213 }
2214
2215 result
2216 }
2217
2218 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut Context<Self>)
2219 where
2220 I: IntoIterator<Item = (Range<S>, T)>,
2221 S: ToOffset,
2222 T: Into<Arc<str>>,
2223 {
2224 if self.read_only(cx) {
2225 return;
2226 }
2227
2228 self.buffer
2229 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2230 }
2231
2232 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut Context<Self>)
2233 where
2234 I: IntoIterator<Item = (Range<S>, T)>,
2235 S: ToOffset,
2236 T: Into<Arc<str>>,
2237 {
2238 if self.read_only(cx) {
2239 return;
2240 }
2241
2242 self.buffer.update(cx, |buffer, cx| {
2243 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2244 });
2245 }
2246
2247 pub fn edit_with_block_indent<I, S, T>(
2248 &mut self,
2249 edits: I,
2250 original_indent_columns: Vec<u32>,
2251 cx: &mut Context<Self>,
2252 ) where
2253 I: IntoIterator<Item = (Range<S>, T)>,
2254 S: ToOffset,
2255 T: Into<Arc<str>>,
2256 {
2257 if self.read_only(cx) {
2258 return;
2259 }
2260
2261 self.buffer.update(cx, |buffer, cx| {
2262 buffer.edit(
2263 edits,
2264 Some(AutoindentMode::Block {
2265 original_indent_columns,
2266 }),
2267 cx,
2268 )
2269 });
2270 }
2271
2272 fn select(&mut self, phase: SelectPhase, window: &mut Window, cx: &mut Context<Self>) {
2273 self.hide_context_menu(window, cx);
2274
2275 match phase {
2276 SelectPhase::Begin {
2277 position,
2278 add,
2279 click_count,
2280 } => self.begin_selection(position, add, click_count, window, cx),
2281 SelectPhase::BeginColumnar {
2282 position,
2283 goal_column,
2284 reset,
2285 } => self.begin_columnar_selection(position, goal_column, reset, window, cx),
2286 SelectPhase::Extend {
2287 position,
2288 click_count,
2289 } => self.extend_selection(position, click_count, window, cx),
2290 SelectPhase::Update {
2291 position,
2292 goal_column,
2293 scroll_delta,
2294 } => self.update_selection(position, goal_column, scroll_delta, window, cx),
2295 SelectPhase::End => self.end_selection(window, cx),
2296 }
2297 }
2298
2299 fn extend_selection(
2300 &mut self,
2301 position: DisplayPoint,
2302 click_count: usize,
2303 window: &mut Window,
2304 cx: &mut Context<Self>,
2305 ) {
2306 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2307 let tail = self.selections.newest::<usize>(cx).tail();
2308 self.begin_selection(position, false, click_count, window, cx);
2309
2310 let position = position.to_offset(&display_map, Bias::Left);
2311 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2312
2313 let mut pending_selection = self
2314 .selections
2315 .pending_anchor()
2316 .expect("extend_selection not called with pending selection");
2317 if position >= tail {
2318 pending_selection.start = tail_anchor;
2319 } else {
2320 pending_selection.end = tail_anchor;
2321 pending_selection.reversed = true;
2322 }
2323
2324 let mut pending_mode = self.selections.pending_mode().unwrap();
2325 match &mut pending_mode {
2326 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2327 _ => {}
2328 }
2329
2330 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
2331 s.set_pending(pending_selection, pending_mode)
2332 });
2333 }
2334
2335 fn begin_selection(
2336 &mut self,
2337 position: DisplayPoint,
2338 add: bool,
2339 click_count: usize,
2340 window: &mut Window,
2341 cx: &mut Context<Self>,
2342 ) {
2343 if !self.focus_handle.is_focused(window) {
2344 self.last_focused_descendant = None;
2345 window.focus(&self.focus_handle);
2346 }
2347
2348 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2349 let buffer = &display_map.buffer_snapshot;
2350 let newest_selection = self.selections.newest_anchor().clone();
2351 let position = display_map.clip_point(position, Bias::Left);
2352
2353 let start;
2354 let end;
2355 let mode;
2356 let mut auto_scroll;
2357 match click_count {
2358 1 => {
2359 start = buffer.anchor_before(position.to_point(&display_map));
2360 end = start;
2361 mode = SelectMode::Character;
2362 auto_scroll = true;
2363 }
2364 2 => {
2365 let range = movement::surrounding_word(&display_map, position);
2366 start = buffer.anchor_before(range.start.to_point(&display_map));
2367 end = buffer.anchor_before(range.end.to_point(&display_map));
2368 mode = SelectMode::Word(start..end);
2369 auto_scroll = true;
2370 }
2371 3 => {
2372 let position = display_map
2373 .clip_point(position, Bias::Left)
2374 .to_point(&display_map);
2375 let line_start = display_map.prev_line_boundary(position).0;
2376 let next_line_start = buffer.clip_point(
2377 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2378 Bias::Left,
2379 );
2380 start = buffer.anchor_before(line_start);
2381 end = buffer.anchor_before(next_line_start);
2382 mode = SelectMode::Line(start..end);
2383 auto_scroll = true;
2384 }
2385 _ => {
2386 start = buffer.anchor_before(0);
2387 end = buffer.anchor_before(buffer.len());
2388 mode = SelectMode::All;
2389 auto_scroll = false;
2390 }
2391 }
2392 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2393
2394 let point_to_delete: Option<usize> = {
2395 let selected_points: Vec<Selection<Point>> =
2396 self.selections.disjoint_in_range(start..end, cx);
2397
2398 if !add || click_count > 1 {
2399 None
2400 } else if !selected_points.is_empty() {
2401 Some(selected_points[0].id)
2402 } else {
2403 let clicked_point_already_selected =
2404 self.selections.disjoint.iter().find(|selection| {
2405 selection.start.to_point(buffer) == start.to_point(buffer)
2406 || selection.end.to_point(buffer) == end.to_point(buffer)
2407 });
2408
2409 clicked_point_already_selected.map(|selection| selection.id)
2410 }
2411 };
2412
2413 let selections_count = self.selections.count();
2414
2415 self.change_selections(auto_scroll.then(Autoscroll::newest), window, cx, |s| {
2416 if let Some(point_to_delete) = point_to_delete {
2417 s.delete(point_to_delete);
2418
2419 if selections_count == 1 {
2420 s.set_pending_anchor_range(start..end, mode);
2421 }
2422 } else {
2423 if !add {
2424 s.clear_disjoint();
2425 } else if click_count > 1 {
2426 s.delete(newest_selection.id)
2427 }
2428
2429 s.set_pending_anchor_range(start..end, mode);
2430 }
2431 });
2432 }
2433
2434 fn begin_columnar_selection(
2435 &mut self,
2436 position: DisplayPoint,
2437 goal_column: u32,
2438 reset: bool,
2439 window: &mut Window,
2440 cx: &mut Context<Self>,
2441 ) {
2442 if !self.focus_handle.is_focused(window) {
2443 self.last_focused_descendant = None;
2444 window.focus(&self.focus_handle);
2445 }
2446
2447 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2448
2449 if reset {
2450 let pointer_position = display_map
2451 .buffer_snapshot
2452 .anchor_before(position.to_point(&display_map));
2453
2454 self.change_selections(Some(Autoscroll::newest()), window, cx, |s| {
2455 s.clear_disjoint();
2456 s.set_pending_anchor_range(
2457 pointer_position..pointer_position,
2458 SelectMode::Character,
2459 );
2460 });
2461 }
2462
2463 let tail = self.selections.newest::<Point>(cx).tail();
2464 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2465
2466 if !reset {
2467 self.select_columns(
2468 tail.to_display_point(&display_map),
2469 position,
2470 goal_column,
2471 &display_map,
2472 window,
2473 cx,
2474 );
2475 }
2476 }
2477
2478 fn update_selection(
2479 &mut self,
2480 position: DisplayPoint,
2481 goal_column: u32,
2482 scroll_delta: gpui::Point<f32>,
2483 window: &mut Window,
2484 cx: &mut Context<Self>,
2485 ) {
2486 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2487
2488 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2489 let tail = tail.to_display_point(&display_map);
2490 self.select_columns(tail, position, goal_column, &display_map, window, cx);
2491 } else if let Some(mut pending) = self.selections.pending_anchor() {
2492 let buffer = self.buffer.read(cx).snapshot(cx);
2493 let head;
2494 let tail;
2495 let mode = self.selections.pending_mode().unwrap();
2496 match &mode {
2497 SelectMode::Character => {
2498 head = position.to_point(&display_map);
2499 tail = pending.tail().to_point(&buffer);
2500 }
2501 SelectMode::Word(original_range) => {
2502 let original_display_range = original_range.start.to_display_point(&display_map)
2503 ..original_range.end.to_display_point(&display_map);
2504 let original_buffer_range = original_display_range.start.to_point(&display_map)
2505 ..original_display_range.end.to_point(&display_map);
2506 if movement::is_inside_word(&display_map, position)
2507 || original_display_range.contains(&position)
2508 {
2509 let word_range = movement::surrounding_word(&display_map, position);
2510 if word_range.start < original_display_range.start {
2511 head = word_range.start.to_point(&display_map);
2512 } else {
2513 head = word_range.end.to_point(&display_map);
2514 }
2515 } else {
2516 head = position.to_point(&display_map);
2517 }
2518
2519 if head <= original_buffer_range.start {
2520 tail = original_buffer_range.end;
2521 } else {
2522 tail = original_buffer_range.start;
2523 }
2524 }
2525 SelectMode::Line(original_range) => {
2526 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2527
2528 let position = display_map
2529 .clip_point(position, Bias::Left)
2530 .to_point(&display_map);
2531 let line_start = display_map.prev_line_boundary(position).0;
2532 let next_line_start = buffer.clip_point(
2533 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2534 Bias::Left,
2535 );
2536
2537 if line_start < original_range.start {
2538 head = line_start
2539 } else {
2540 head = next_line_start
2541 }
2542
2543 if head <= original_range.start {
2544 tail = original_range.end;
2545 } else {
2546 tail = original_range.start;
2547 }
2548 }
2549 SelectMode::All => {
2550 return;
2551 }
2552 };
2553
2554 if head < tail {
2555 pending.start = buffer.anchor_before(head);
2556 pending.end = buffer.anchor_before(tail);
2557 pending.reversed = true;
2558 } else {
2559 pending.start = buffer.anchor_before(tail);
2560 pending.end = buffer.anchor_before(head);
2561 pending.reversed = false;
2562 }
2563
2564 self.change_selections(None, window, cx, |s| {
2565 s.set_pending(pending, mode);
2566 });
2567 } else {
2568 log::error!("update_selection dispatched with no pending selection");
2569 return;
2570 }
2571
2572 self.apply_scroll_delta(scroll_delta, window, cx);
2573 cx.notify();
2574 }
2575
2576 fn end_selection(&mut self, window: &mut Window, cx: &mut Context<Self>) {
2577 self.columnar_selection_tail.take();
2578 if self.selections.pending_anchor().is_some() {
2579 let selections = self.selections.all::<usize>(cx);
2580 self.change_selections(None, window, cx, |s| {
2581 s.select(selections);
2582 s.clear_pending();
2583 });
2584 }
2585 }
2586
2587 fn select_columns(
2588 &mut self,
2589 tail: DisplayPoint,
2590 head: DisplayPoint,
2591 goal_column: u32,
2592 display_map: &DisplaySnapshot,
2593 window: &mut Window,
2594 cx: &mut Context<Self>,
2595 ) {
2596 let start_row = cmp::min(tail.row(), head.row());
2597 let end_row = cmp::max(tail.row(), head.row());
2598 let start_column = cmp::min(tail.column(), goal_column);
2599 let end_column = cmp::max(tail.column(), goal_column);
2600 let reversed = start_column < tail.column();
2601
2602 let selection_ranges = (start_row.0..=end_row.0)
2603 .map(DisplayRow)
2604 .filter_map(|row| {
2605 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2606 let start = display_map
2607 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2608 .to_point(display_map);
2609 let end = display_map
2610 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2611 .to_point(display_map);
2612 if reversed {
2613 Some(end..start)
2614 } else {
2615 Some(start..end)
2616 }
2617 } else {
2618 None
2619 }
2620 })
2621 .collect::<Vec<_>>();
2622
2623 self.change_selections(None, window, cx, |s| {
2624 s.select_ranges(selection_ranges);
2625 });
2626 cx.notify();
2627 }
2628
2629 pub fn has_pending_nonempty_selection(&self) -> bool {
2630 let pending_nonempty_selection = match self.selections.pending_anchor() {
2631 Some(Selection { start, end, .. }) => start != end,
2632 None => false,
2633 };
2634
2635 pending_nonempty_selection
2636 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2637 }
2638
2639 pub fn has_pending_selection(&self) -> bool {
2640 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2641 }
2642
2643 pub fn cancel(&mut self, _: &Cancel, window: &mut Window, cx: &mut Context<Self>) {
2644 self.selection_mark_mode = false;
2645
2646 if self.clear_expanded_diff_hunks(cx) {
2647 cx.notify();
2648 return;
2649 }
2650 if self.dismiss_menus_and_popups(true, window, cx) {
2651 return;
2652 }
2653
2654 if self.mode == EditorMode::Full
2655 && self.change_selections(Some(Autoscroll::fit()), window, cx, |s| s.try_cancel())
2656 {
2657 return;
2658 }
2659
2660 cx.propagate();
2661 }
2662
2663 pub fn dismiss_menus_and_popups(
2664 &mut self,
2665 is_user_requested: bool,
2666 window: &mut Window,
2667 cx: &mut Context<Self>,
2668 ) -> bool {
2669 if self.take_rename(false, window, cx).is_some() {
2670 return true;
2671 }
2672
2673 if hide_hover(self, cx) {
2674 return true;
2675 }
2676
2677 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2678 return true;
2679 }
2680
2681 if self.hide_context_menu(window, cx).is_some() {
2682 return true;
2683 }
2684
2685 if self.mouse_context_menu.take().is_some() {
2686 return true;
2687 }
2688
2689 if is_user_requested && self.discard_inline_completion(true, cx) {
2690 return true;
2691 }
2692
2693 if self.snippet_stack.pop().is_some() {
2694 return true;
2695 }
2696
2697 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2698 self.dismiss_diagnostics(cx);
2699 return true;
2700 }
2701
2702 false
2703 }
2704
2705 fn linked_editing_ranges_for(
2706 &self,
2707 selection: Range<text::Anchor>,
2708 cx: &App,
2709 ) -> Option<HashMap<Entity<Buffer>, Vec<Range<text::Anchor>>>> {
2710 if self.linked_edit_ranges.is_empty() {
2711 return None;
2712 }
2713 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2714 selection.end.buffer_id.and_then(|end_buffer_id| {
2715 if selection.start.buffer_id != Some(end_buffer_id) {
2716 return None;
2717 }
2718 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2719 let snapshot = buffer.read(cx).snapshot();
2720 self.linked_edit_ranges
2721 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2722 .map(|ranges| (ranges, snapshot, buffer))
2723 })?;
2724 use text::ToOffset as TO;
2725 // find offset from the start of current range to current cursor position
2726 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2727
2728 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2729 let start_difference = start_offset - start_byte_offset;
2730 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2731 let end_difference = end_offset - start_byte_offset;
2732 // Current range has associated linked ranges.
2733 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2734 for range in linked_ranges.iter() {
2735 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2736 let end_offset = start_offset + end_difference;
2737 let start_offset = start_offset + start_difference;
2738 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2739 continue;
2740 }
2741 if self.selections.disjoint_anchor_ranges().any(|s| {
2742 if s.start.buffer_id != selection.start.buffer_id
2743 || s.end.buffer_id != selection.end.buffer_id
2744 {
2745 return false;
2746 }
2747 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2748 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2749 }) {
2750 continue;
2751 }
2752 let start = buffer_snapshot.anchor_after(start_offset);
2753 let end = buffer_snapshot.anchor_after(end_offset);
2754 linked_edits
2755 .entry(buffer.clone())
2756 .or_default()
2757 .push(start..end);
2758 }
2759 Some(linked_edits)
2760 }
2761
2762 pub fn handle_input(&mut self, text: &str, window: &mut Window, cx: &mut Context<Self>) {
2763 let text: Arc<str> = text.into();
2764
2765 if self.read_only(cx) {
2766 return;
2767 }
2768
2769 let selections = self.selections.all_adjusted(cx);
2770 let mut bracket_inserted = false;
2771 let mut edits = Vec::new();
2772 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2773 let mut new_selections = Vec::with_capacity(selections.len());
2774 let mut new_autoclose_regions = Vec::new();
2775 let snapshot = self.buffer.read(cx).read(cx);
2776
2777 for (selection, autoclose_region) in
2778 self.selections_with_autoclose_regions(selections, &snapshot)
2779 {
2780 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2781 // Determine if the inserted text matches the opening or closing
2782 // bracket of any of this language's bracket pairs.
2783 let mut bracket_pair = None;
2784 let mut is_bracket_pair_start = false;
2785 let mut is_bracket_pair_end = false;
2786 if !text.is_empty() {
2787 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2788 // and they are removing the character that triggered IME popup.
2789 for (pair, enabled) in scope.brackets() {
2790 if !pair.close && !pair.surround {
2791 continue;
2792 }
2793
2794 if enabled && pair.start.ends_with(text.as_ref()) {
2795 let prefix_len = pair.start.len() - text.len();
2796 let preceding_text_matches_prefix = prefix_len == 0
2797 || (selection.start.column >= (prefix_len as u32)
2798 && snapshot.contains_str_at(
2799 Point::new(
2800 selection.start.row,
2801 selection.start.column - (prefix_len as u32),
2802 ),
2803 &pair.start[..prefix_len],
2804 ));
2805 if preceding_text_matches_prefix {
2806 bracket_pair = Some(pair.clone());
2807 is_bracket_pair_start = true;
2808 break;
2809 }
2810 }
2811 if pair.end.as_str() == text.as_ref() {
2812 bracket_pair = Some(pair.clone());
2813 is_bracket_pair_end = true;
2814 break;
2815 }
2816 }
2817 }
2818
2819 if let Some(bracket_pair) = bracket_pair {
2820 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2821 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2822 let auto_surround =
2823 self.use_auto_surround && snapshot_settings.use_auto_surround;
2824 if selection.is_empty() {
2825 if is_bracket_pair_start {
2826 // If the inserted text is a suffix of an opening bracket and the
2827 // selection is preceded by the rest of the opening bracket, then
2828 // insert the closing bracket.
2829 let following_text_allows_autoclose = snapshot
2830 .chars_at(selection.start)
2831 .next()
2832 .map_or(true, |c| scope.should_autoclose_before(c));
2833
2834 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2835 && bracket_pair.start.len() == 1
2836 {
2837 let target = bracket_pair.start.chars().next().unwrap();
2838 let current_line_count = snapshot
2839 .reversed_chars_at(selection.start)
2840 .take_while(|&c| c != '\n')
2841 .filter(|&c| c == target)
2842 .count();
2843 current_line_count % 2 == 1
2844 } else {
2845 false
2846 };
2847
2848 if autoclose
2849 && bracket_pair.close
2850 && following_text_allows_autoclose
2851 && !is_closing_quote
2852 {
2853 let anchor = snapshot.anchor_before(selection.end);
2854 new_selections.push((selection.map(|_| anchor), text.len()));
2855 new_autoclose_regions.push((
2856 anchor,
2857 text.len(),
2858 selection.id,
2859 bracket_pair.clone(),
2860 ));
2861 edits.push((
2862 selection.range(),
2863 format!("{}{}", text, bracket_pair.end).into(),
2864 ));
2865 bracket_inserted = true;
2866 continue;
2867 }
2868 }
2869
2870 if let Some(region) = autoclose_region {
2871 // If the selection is followed by an auto-inserted closing bracket,
2872 // then don't insert that closing bracket again; just move the selection
2873 // past the closing bracket.
2874 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2875 && text.as_ref() == region.pair.end.as_str();
2876 if should_skip {
2877 let anchor = snapshot.anchor_after(selection.end);
2878 new_selections
2879 .push((selection.map(|_| anchor), region.pair.end.len()));
2880 continue;
2881 }
2882 }
2883
2884 let always_treat_brackets_as_autoclosed = snapshot
2885 .settings_at(selection.start, cx)
2886 .always_treat_brackets_as_autoclosed;
2887 if always_treat_brackets_as_autoclosed
2888 && is_bracket_pair_end
2889 && snapshot.contains_str_at(selection.end, text.as_ref())
2890 {
2891 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2892 // and the inserted text is a closing bracket and the selection is followed
2893 // by the closing bracket then move the selection past the closing bracket.
2894 let anchor = snapshot.anchor_after(selection.end);
2895 new_selections.push((selection.map(|_| anchor), text.len()));
2896 continue;
2897 }
2898 }
2899 // If an opening bracket is 1 character long and is typed while
2900 // text is selected, then surround that text with the bracket pair.
2901 else if auto_surround
2902 && bracket_pair.surround
2903 && is_bracket_pair_start
2904 && bracket_pair.start.chars().count() == 1
2905 {
2906 edits.push((selection.start..selection.start, text.clone()));
2907 edits.push((
2908 selection.end..selection.end,
2909 bracket_pair.end.as_str().into(),
2910 ));
2911 bracket_inserted = true;
2912 new_selections.push((
2913 Selection {
2914 id: selection.id,
2915 start: snapshot.anchor_after(selection.start),
2916 end: snapshot.anchor_before(selection.end),
2917 reversed: selection.reversed,
2918 goal: selection.goal,
2919 },
2920 0,
2921 ));
2922 continue;
2923 }
2924 }
2925 }
2926
2927 if self.auto_replace_emoji_shortcode
2928 && selection.is_empty()
2929 && text.as_ref().ends_with(':')
2930 {
2931 if let Some(possible_emoji_short_code) =
2932 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2933 {
2934 if !possible_emoji_short_code.is_empty() {
2935 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2936 let emoji_shortcode_start = Point::new(
2937 selection.start.row,
2938 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2939 );
2940
2941 // Remove shortcode from buffer
2942 edits.push((
2943 emoji_shortcode_start..selection.start,
2944 "".to_string().into(),
2945 ));
2946 new_selections.push((
2947 Selection {
2948 id: selection.id,
2949 start: snapshot.anchor_after(emoji_shortcode_start),
2950 end: snapshot.anchor_before(selection.start),
2951 reversed: selection.reversed,
2952 goal: selection.goal,
2953 },
2954 0,
2955 ));
2956
2957 // Insert emoji
2958 let selection_start_anchor = snapshot.anchor_after(selection.start);
2959 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2960 edits.push((selection.start..selection.end, emoji.to_string().into()));
2961
2962 continue;
2963 }
2964 }
2965 }
2966 }
2967
2968 // If not handling any auto-close operation, then just replace the selected
2969 // text with the given input and move the selection to the end of the
2970 // newly inserted text.
2971 let anchor = snapshot.anchor_after(selection.end);
2972 if !self.linked_edit_ranges.is_empty() {
2973 let start_anchor = snapshot.anchor_before(selection.start);
2974
2975 let is_word_char = text.chars().next().map_or(true, |char| {
2976 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2977 classifier.is_word(char)
2978 });
2979
2980 if is_word_char {
2981 if let Some(ranges) = self
2982 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2983 {
2984 for (buffer, edits) in ranges {
2985 linked_edits
2986 .entry(buffer.clone())
2987 .or_default()
2988 .extend(edits.into_iter().map(|range| (range, text.clone())));
2989 }
2990 }
2991 }
2992 }
2993
2994 new_selections.push((selection.map(|_| anchor), 0));
2995 edits.push((selection.start..selection.end, text.clone()));
2996 }
2997
2998 drop(snapshot);
2999
3000 self.transact(window, cx, |this, window, cx| {
3001 this.buffer.update(cx, |buffer, cx| {
3002 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3003 });
3004 for (buffer, edits) in linked_edits {
3005 buffer.update(cx, |buffer, cx| {
3006 let snapshot = buffer.snapshot();
3007 let edits = edits
3008 .into_iter()
3009 .map(|(range, text)| {
3010 use text::ToPoint as TP;
3011 let end_point = TP::to_point(&range.end, &snapshot);
3012 let start_point = TP::to_point(&range.start, &snapshot);
3013 (start_point..end_point, text)
3014 })
3015 .sorted_by_key(|(range, _)| range.start)
3016 .collect::<Vec<_>>();
3017 buffer.edit(edits, None, cx);
3018 })
3019 }
3020 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3021 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3022 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3023 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3024 .zip(new_selection_deltas)
3025 .map(|(selection, delta)| Selection {
3026 id: selection.id,
3027 start: selection.start + delta,
3028 end: selection.end + delta,
3029 reversed: selection.reversed,
3030 goal: SelectionGoal::None,
3031 })
3032 .collect::<Vec<_>>();
3033
3034 let mut i = 0;
3035 for (position, delta, selection_id, pair) in new_autoclose_regions {
3036 let position = position.to_offset(&map.buffer_snapshot) + delta;
3037 let start = map.buffer_snapshot.anchor_before(position);
3038 let end = map.buffer_snapshot.anchor_after(position);
3039 while let Some(existing_state) = this.autoclose_regions.get(i) {
3040 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3041 Ordering::Less => i += 1,
3042 Ordering::Greater => break,
3043 Ordering::Equal => {
3044 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3045 Ordering::Less => i += 1,
3046 Ordering::Equal => break,
3047 Ordering::Greater => break,
3048 }
3049 }
3050 }
3051 }
3052 this.autoclose_regions.insert(
3053 i,
3054 AutocloseRegion {
3055 selection_id,
3056 range: start..end,
3057 pair,
3058 },
3059 );
3060 }
3061
3062 let had_active_inline_completion = this.has_active_inline_completion();
3063 this.change_selections_inner(Some(Autoscroll::fit()), false, window, cx, |s| {
3064 s.select(new_selections)
3065 });
3066
3067 if !bracket_inserted {
3068 if let Some(on_type_format_task) =
3069 this.trigger_on_type_formatting(text.to_string(), window, cx)
3070 {
3071 on_type_format_task.detach_and_log_err(cx);
3072 }
3073 }
3074
3075 let editor_settings = EditorSettings::get_global(cx);
3076 if bracket_inserted
3077 && (editor_settings.auto_signature_help
3078 || editor_settings.show_signature_help_after_edits)
3079 {
3080 this.show_signature_help(&ShowSignatureHelp, window, cx);
3081 }
3082
3083 let trigger_in_words =
3084 this.show_edit_predictions_in_menu() || !had_active_inline_completion;
3085 this.trigger_completion_on_input(&text, trigger_in_words, window, cx);
3086 linked_editing_ranges::refresh_linked_ranges(this, window, cx);
3087 this.refresh_inline_completion(true, false, window, cx);
3088 });
3089 }
3090
3091 fn find_possible_emoji_shortcode_at_position(
3092 snapshot: &MultiBufferSnapshot,
3093 position: Point,
3094 ) -> Option<String> {
3095 let mut chars = Vec::new();
3096 let mut found_colon = false;
3097 for char in snapshot.reversed_chars_at(position).take(100) {
3098 // Found a possible emoji shortcode in the middle of the buffer
3099 if found_colon {
3100 if char.is_whitespace() {
3101 chars.reverse();
3102 return Some(chars.iter().collect());
3103 }
3104 // If the previous character is not a whitespace, we are in the middle of a word
3105 // and we only want to complete the shortcode if the word is made up of other emojis
3106 let mut containing_word = String::new();
3107 for ch in snapshot
3108 .reversed_chars_at(position)
3109 .skip(chars.len() + 1)
3110 .take(100)
3111 {
3112 if ch.is_whitespace() {
3113 break;
3114 }
3115 containing_word.push(ch);
3116 }
3117 let containing_word = containing_word.chars().rev().collect::<String>();
3118 if util::word_consists_of_emojis(containing_word.as_str()) {
3119 chars.reverse();
3120 return Some(chars.iter().collect());
3121 }
3122 }
3123
3124 if char.is_whitespace() || !char.is_ascii() {
3125 return None;
3126 }
3127 if char == ':' {
3128 found_colon = true;
3129 } else {
3130 chars.push(char);
3131 }
3132 }
3133 // Found a possible emoji shortcode at the beginning of the buffer
3134 chars.reverse();
3135 Some(chars.iter().collect())
3136 }
3137
3138 pub fn newline(&mut self, _: &Newline, window: &mut Window, cx: &mut Context<Self>) {
3139 self.transact(window, cx, |this, window, cx| {
3140 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3141 let selections = this.selections.all::<usize>(cx);
3142 let multi_buffer = this.buffer.read(cx);
3143 let buffer = multi_buffer.snapshot(cx);
3144 selections
3145 .iter()
3146 .map(|selection| {
3147 let start_point = selection.start.to_point(&buffer);
3148 let mut indent =
3149 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3150 indent.len = cmp::min(indent.len, start_point.column);
3151 let start = selection.start;
3152 let end = selection.end;
3153 let selection_is_empty = start == end;
3154 let language_scope = buffer.language_scope_at(start);
3155 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3156 &language_scope
3157 {
3158 let leading_whitespace_len = buffer
3159 .reversed_chars_at(start)
3160 .take_while(|c| c.is_whitespace() && *c != '\n')
3161 .map(|c| c.len_utf8())
3162 .sum::<usize>();
3163
3164 let trailing_whitespace_len = buffer
3165 .chars_at(end)
3166 .take_while(|c| c.is_whitespace() && *c != '\n')
3167 .map(|c| c.len_utf8())
3168 .sum::<usize>();
3169
3170 let insert_extra_newline =
3171 language.brackets().any(|(pair, enabled)| {
3172 let pair_start = pair.start.trim_end();
3173 let pair_end = pair.end.trim_start();
3174
3175 enabled
3176 && pair.newline
3177 && buffer.contains_str_at(
3178 end + trailing_whitespace_len,
3179 pair_end,
3180 )
3181 && buffer.contains_str_at(
3182 (start - leading_whitespace_len)
3183 .saturating_sub(pair_start.len()),
3184 pair_start,
3185 )
3186 });
3187
3188 // Comment extension on newline is allowed only for cursor selections
3189 let comment_delimiter = maybe!({
3190 if !selection_is_empty {
3191 return None;
3192 }
3193
3194 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3195 return None;
3196 }
3197
3198 let delimiters = language.line_comment_prefixes();
3199 let max_len_of_delimiter =
3200 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3201 let (snapshot, range) =
3202 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3203
3204 let mut index_of_first_non_whitespace = 0;
3205 let comment_candidate = snapshot
3206 .chars_for_range(range)
3207 .skip_while(|c| {
3208 let should_skip = c.is_whitespace();
3209 if should_skip {
3210 index_of_first_non_whitespace += 1;
3211 }
3212 should_skip
3213 })
3214 .take(max_len_of_delimiter)
3215 .collect::<String>();
3216 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3217 comment_candidate.starts_with(comment_prefix.as_ref())
3218 })?;
3219 let cursor_is_placed_after_comment_marker =
3220 index_of_first_non_whitespace + comment_prefix.len()
3221 <= start_point.column as usize;
3222 if cursor_is_placed_after_comment_marker {
3223 Some(comment_prefix.clone())
3224 } else {
3225 None
3226 }
3227 });
3228 (comment_delimiter, insert_extra_newline)
3229 } else {
3230 (None, false)
3231 };
3232
3233 let capacity_for_delimiter = comment_delimiter
3234 .as_deref()
3235 .map(str::len)
3236 .unwrap_or_default();
3237 let mut new_text =
3238 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3239 new_text.push('\n');
3240 new_text.extend(indent.chars());
3241 if let Some(delimiter) = &comment_delimiter {
3242 new_text.push_str(delimiter);
3243 }
3244 if insert_extra_newline {
3245 new_text = new_text.repeat(2);
3246 }
3247
3248 let anchor = buffer.anchor_after(end);
3249 let new_selection = selection.map(|_| anchor);
3250 (
3251 (start..end, new_text),
3252 (insert_extra_newline, new_selection),
3253 )
3254 })
3255 .unzip()
3256 };
3257
3258 this.edit_with_autoindent(edits, cx);
3259 let buffer = this.buffer.read(cx).snapshot(cx);
3260 let new_selections = selection_fixup_info
3261 .into_iter()
3262 .map(|(extra_newline_inserted, new_selection)| {
3263 let mut cursor = new_selection.end.to_point(&buffer);
3264 if extra_newline_inserted {
3265 cursor.row -= 1;
3266 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3267 }
3268 new_selection.map(|_| cursor)
3269 })
3270 .collect();
3271
3272 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
3273 s.select(new_selections)
3274 });
3275 this.refresh_inline_completion(true, false, window, cx);
3276 });
3277 }
3278
3279 pub fn newline_above(&mut self, _: &NewlineAbove, window: &mut Window, cx: &mut Context<Self>) {
3280 let buffer = self.buffer.read(cx);
3281 let snapshot = buffer.snapshot(cx);
3282
3283 let mut edits = Vec::new();
3284 let mut rows = Vec::new();
3285
3286 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3287 let cursor = selection.head();
3288 let row = cursor.row;
3289
3290 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3291
3292 let newline = "\n".to_string();
3293 edits.push((start_of_line..start_of_line, newline));
3294
3295 rows.push(row + rows_inserted as u32);
3296 }
3297
3298 self.transact(window, cx, |editor, window, cx| {
3299 editor.edit(edits, cx);
3300
3301 editor.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
3302 let mut index = 0;
3303 s.move_cursors_with(|map, _, _| {
3304 let row = rows[index];
3305 index += 1;
3306
3307 let point = Point::new(row, 0);
3308 let boundary = map.next_line_boundary(point).1;
3309 let clipped = map.clip_point(boundary, Bias::Left);
3310
3311 (clipped, SelectionGoal::None)
3312 });
3313 });
3314
3315 let mut indent_edits = Vec::new();
3316 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3317 for row in rows {
3318 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3319 for (row, indent) in indents {
3320 if indent.len == 0 {
3321 continue;
3322 }
3323
3324 let text = match indent.kind {
3325 IndentKind::Space => " ".repeat(indent.len as usize),
3326 IndentKind::Tab => "\t".repeat(indent.len as usize),
3327 };
3328 let point = Point::new(row.0, 0);
3329 indent_edits.push((point..point, text));
3330 }
3331 }
3332 editor.edit(indent_edits, cx);
3333 });
3334 }
3335
3336 pub fn newline_below(&mut self, _: &NewlineBelow, window: &mut Window, cx: &mut Context<Self>) {
3337 let buffer = self.buffer.read(cx);
3338 let snapshot = buffer.snapshot(cx);
3339
3340 let mut edits = Vec::new();
3341 let mut rows = Vec::new();
3342 let mut rows_inserted = 0;
3343
3344 for selection in self.selections.all_adjusted(cx) {
3345 let cursor = selection.head();
3346 let row = cursor.row;
3347
3348 let point = Point::new(row + 1, 0);
3349 let start_of_line = snapshot.clip_point(point, Bias::Left);
3350
3351 let newline = "\n".to_string();
3352 edits.push((start_of_line..start_of_line, newline));
3353
3354 rows_inserted += 1;
3355 rows.push(row + rows_inserted);
3356 }
3357
3358 self.transact(window, cx, |editor, window, cx| {
3359 editor.edit(edits, cx);
3360
3361 editor.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
3362 let mut index = 0;
3363 s.move_cursors_with(|map, _, _| {
3364 let row = rows[index];
3365 index += 1;
3366
3367 let point = Point::new(row, 0);
3368 let boundary = map.next_line_boundary(point).1;
3369 let clipped = map.clip_point(boundary, Bias::Left);
3370
3371 (clipped, SelectionGoal::None)
3372 });
3373 });
3374
3375 let mut indent_edits = Vec::new();
3376 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3377 for row in rows {
3378 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3379 for (row, indent) in indents {
3380 if indent.len == 0 {
3381 continue;
3382 }
3383
3384 let text = match indent.kind {
3385 IndentKind::Space => " ".repeat(indent.len as usize),
3386 IndentKind::Tab => "\t".repeat(indent.len as usize),
3387 };
3388 let point = Point::new(row.0, 0);
3389 indent_edits.push((point..point, text));
3390 }
3391 }
3392 editor.edit(indent_edits, cx);
3393 });
3394 }
3395
3396 pub fn insert(&mut self, text: &str, window: &mut Window, cx: &mut Context<Self>) {
3397 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3398 original_indent_columns: Vec::new(),
3399 });
3400 self.insert_with_autoindent_mode(text, autoindent, window, cx);
3401 }
3402
3403 fn insert_with_autoindent_mode(
3404 &mut self,
3405 text: &str,
3406 autoindent_mode: Option<AutoindentMode>,
3407 window: &mut Window,
3408 cx: &mut Context<Self>,
3409 ) {
3410 if self.read_only(cx) {
3411 return;
3412 }
3413
3414 let text: Arc<str> = text.into();
3415 self.transact(window, cx, |this, window, cx| {
3416 let old_selections = this.selections.all_adjusted(cx);
3417 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3418 let anchors = {
3419 let snapshot = buffer.read(cx);
3420 old_selections
3421 .iter()
3422 .map(|s| {
3423 let anchor = snapshot.anchor_after(s.head());
3424 s.map(|_| anchor)
3425 })
3426 .collect::<Vec<_>>()
3427 };
3428 buffer.edit(
3429 old_selections
3430 .iter()
3431 .map(|s| (s.start..s.end, text.clone())),
3432 autoindent_mode,
3433 cx,
3434 );
3435 anchors
3436 });
3437
3438 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
3439 s.select_anchors(selection_anchors);
3440 });
3441
3442 cx.notify();
3443 });
3444 }
3445
3446 fn trigger_completion_on_input(
3447 &mut self,
3448 text: &str,
3449 trigger_in_words: bool,
3450 window: &mut Window,
3451 cx: &mut Context<Self>,
3452 ) {
3453 if self.is_completion_trigger(text, trigger_in_words, cx) {
3454 self.show_completions(
3455 &ShowCompletions {
3456 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3457 },
3458 window,
3459 cx,
3460 );
3461 } else {
3462 self.hide_context_menu(window, cx);
3463 }
3464 }
3465
3466 fn is_completion_trigger(
3467 &self,
3468 text: &str,
3469 trigger_in_words: bool,
3470 cx: &mut Context<Self>,
3471 ) -> bool {
3472 let position = self.selections.newest_anchor().head();
3473 let multibuffer = self.buffer.read(cx);
3474 let Some(buffer) = position
3475 .buffer_id
3476 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3477 else {
3478 return false;
3479 };
3480
3481 if let Some(completion_provider) = &self.completion_provider {
3482 completion_provider.is_completion_trigger(
3483 &buffer,
3484 position.text_anchor,
3485 text,
3486 trigger_in_words,
3487 cx,
3488 )
3489 } else {
3490 false
3491 }
3492 }
3493
3494 /// If any empty selections is touching the start of its innermost containing autoclose
3495 /// region, expand it to select the brackets.
3496 fn select_autoclose_pair(&mut self, window: &mut Window, cx: &mut Context<Self>) {
3497 let selections = self.selections.all::<usize>(cx);
3498 let buffer = self.buffer.read(cx).read(cx);
3499 let new_selections = self
3500 .selections_with_autoclose_regions(selections, &buffer)
3501 .map(|(mut selection, region)| {
3502 if !selection.is_empty() {
3503 return selection;
3504 }
3505
3506 if let Some(region) = region {
3507 let mut range = region.range.to_offset(&buffer);
3508 if selection.start == range.start && range.start >= region.pair.start.len() {
3509 range.start -= region.pair.start.len();
3510 if buffer.contains_str_at(range.start, ®ion.pair.start)
3511 && buffer.contains_str_at(range.end, ®ion.pair.end)
3512 {
3513 range.end += region.pair.end.len();
3514 selection.start = range.start;
3515 selection.end = range.end;
3516
3517 return selection;
3518 }
3519 }
3520 }
3521
3522 let always_treat_brackets_as_autoclosed = buffer
3523 .settings_at(selection.start, cx)
3524 .always_treat_brackets_as_autoclosed;
3525
3526 if !always_treat_brackets_as_autoclosed {
3527 return selection;
3528 }
3529
3530 if let Some(scope) = buffer.language_scope_at(selection.start) {
3531 for (pair, enabled) in scope.brackets() {
3532 if !enabled || !pair.close {
3533 continue;
3534 }
3535
3536 if buffer.contains_str_at(selection.start, &pair.end) {
3537 let pair_start_len = pair.start.len();
3538 if buffer.contains_str_at(
3539 selection.start.saturating_sub(pair_start_len),
3540 &pair.start,
3541 ) {
3542 selection.start -= pair_start_len;
3543 selection.end += pair.end.len();
3544
3545 return selection;
3546 }
3547 }
3548 }
3549 }
3550
3551 selection
3552 })
3553 .collect();
3554
3555 drop(buffer);
3556 self.change_selections(None, window, cx, |selections| {
3557 selections.select(new_selections)
3558 });
3559 }
3560
3561 /// Iterate the given selections, and for each one, find the smallest surrounding
3562 /// autoclose region. This uses the ordering of the selections and the autoclose
3563 /// regions to avoid repeated comparisons.
3564 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3565 &'a self,
3566 selections: impl IntoIterator<Item = Selection<D>>,
3567 buffer: &'a MultiBufferSnapshot,
3568 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3569 let mut i = 0;
3570 let mut regions = self.autoclose_regions.as_slice();
3571 selections.into_iter().map(move |selection| {
3572 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3573
3574 let mut enclosing = None;
3575 while let Some(pair_state) = regions.get(i) {
3576 if pair_state.range.end.to_offset(buffer) < range.start {
3577 regions = ®ions[i + 1..];
3578 i = 0;
3579 } else if pair_state.range.start.to_offset(buffer) > range.end {
3580 break;
3581 } else {
3582 if pair_state.selection_id == selection.id {
3583 enclosing = Some(pair_state);
3584 }
3585 i += 1;
3586 }
3587 }
3588
3589 (selection, enclosing)
3590 })
3591 }
3592
3593 /// Remove any autoclose regions that no longer contain their selection.
3594 fn invalidate_autoclose_regions(
3595 &mut self,
3596 mut selections: &[Selection<Anchor>],
3597 buffer: &MultiBufferSnapshot,
3598 ) {
3599 self.autoclose_regions.retain(|state| {
3600 let mut i = 0;
3601 while let Some(selection) = selections.get(i) {
3602 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3603 selections = &selections[1..];
3604 continue;
3605 }
3606 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3607 break;
3608 }
3609 if selection.id == state.selection_id {
3610 return true;
3611 } else {
3612 i += 1;
3613 }
3614 }
3615 false
3616 });
3617 }
3618
3619 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3620 let offset = position.to_offset(buffer);
3621 let (word_range, kind) = buffer.surrounding_word(offset, true);
3622 if offset > word_range.start && kind == Some(CharKind::Word) {
3623 Some(
3624 buffer
3625 .text_for_range(word_range.start..offset)
3626 .collect::<String>(),
3627 )
3628 } else {
3629 None
3630 }
3631 }
3632
3633 pub fn toggle_inlay_hints(
3634 &mut self,
3635 _: &ToggleInlayHints,
3636 _: &mut Window,
3637 cx: &mut Context<Self>,
3638 ) {
3639 self.refresh_inlay_hints(
3640 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3641 cx,
3642 );
3643 }
3644
3645 pub fn inlay_hints_enabled(&self) -> bool {
3646 self.inlay_hint_cache.enabled
3647 }
3648
3649 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut Context<Self>) {
3650 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3651 return;
3652 }
3653
3654 let reason_description = reason.description();
3655 let ignore_debounce = matches!(
3656 reason,
3657 InlayHintRefreshReason::SettingsChange(_)
3658 | InlayHintRefreshReason::Toggle(_)
3659 | InlayHintRefreshReason::ExcerptsRemoved(_)
3660 );
3661 let (invalidate_cache, required_languages) = match reason {
3662 InlayHintRefreshReason::Toggle(enabled) => {
3663 self.inlay_hint_cache.enabled = enabled;
3664 if enabled {
3665 (InvalidationStrategy::RefreshRequested, None)
3666 } else {
3667 self.inlay_hint_cache.clear();
3668 self.splice_inlays(
3669 &self
3670 .visible_inlay_hints(cx)
3671 .iter()
3672 .map(|inlay| inlay.id)
3673 .collect::<Vec<InlayId>>(),
3674 Vec::new(),
3675 cx,
3676 );
3677 return;
3678 }
3679 }
3680 InlayHintRefreshReason::SettingsChange(new_settings) => {
3681 match self.inlay_hint_cache.update_settings(
3682 &self.buffer,
3683 new_settings,
3684 self.visible_inlay_hints(cx),
3685 cx,
3686 ) {
3687 ControlFlow::Break(Some(InlaySplice {
3688 to_remove,
3689 to_insert,
3690 })) => {
3691 self.splice_inlays(&to_remove, to_insert, cx);
3692 return;
3693 }
3694 ControlFlow::Break(None) => return,
3695 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3696 }
3697 }
3698 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3699 if let Some(InlaySplice {
3700 to_remove,
3701 to_insert,
3702 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3703 {
3704 self.splice_inlays(&to_remove, to_insert, cx);
3705 }
3706 return;
3707 }
3708 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3709 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3710 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3711 }
3712 InlayHintRefreshReason::RefreshRequested => {
3713 (InvalidationStrategy::RefreshRequested, None)
3714 }
3715 };
3716
3717 if let Some(InlaySplice {
3718 to_remove,
3719 to_insert,
3720 }) = self.inlay_hint_cache.spawn_hint_refresh(
3721 reason_description,
3722 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3723 invalidate_cache,
3724 ignore_debounce,
3725 cx,
3726 ) {
3727 self.splice_inlays(&to_remove, to_insert, cx);
3728 }
3729 }
3730
3731 fn visible_inlay_hints(&self, cx: &Context<Editor>) -> Vec<Inlay> {
3732 self.display_map
3733 .read(cx)
3734 .current_inlays()
3735 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3736 .cloned()
3737 .collect()
3738 }
3739
3740 pub fn excerpts_for_inlay_hints_query(
3741 &self,
3742 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3743 cx: &mut Context<Editor>,
3744 ) -> HashMap<ExcerptId, (Entity<Buffer>, clock::Global, Range<usize>)> {
3745 let Some(project) = self.project.as_ref() else {
3746 return HashMap::default();
3747 };
3748 let project = project.read(cx);
3749 let multi_buffer = self.buffer().read(cx);
3750 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3751 let multi_buffer_visible_start = self
3752 .scroll_manager
3753 .anchor()
3754 .anchor
3755 .to_point(&multi_buffer_snapshot);
3756 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3757 multi_buffer_visible_start
3758 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3759 Bias::Left,
3760 );
3761 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3762 multi_buffer_snapshot
3763 .range_to_buffer_ranges(multi_buffer_visible_range)
3764 .into_iter()
3765 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3766 .filter_map(|(buffer, excerpt_visible_range, excerpt_id)| {
3767 let buffer_file = project::File::from_dyn(buffer.file())?;
3768 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3769 let worktree_entry = buffer_worktree
3770 .read(cx)
3771 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3772 if worktree_entry.is_ignored {
3773 return None;
3774 }
3775
3776 let language = buffer.language()?;
3777 if let Some(restrict_to_languages) = restrict_to_languages {
3778 if !restrict_to_languages.contains(language) {
3779 return None;
3780 }
3781 }
3782 Some((
3783 excerpt_id,
3784 (
3785 multi_buffer.buffer(buffer.remote_id()).unwrap(),
3786 buffer.version().clone(),
3787 excerpt_visible_range,
3788 ),
3789 ))
3790 })
3791 .collect()
3792 }
3793
3794 pub fn text_layout_details(&self, window: &mut Window) -> TextLayoutDetails {
3795 TextLayoutDetails {
3796 text_system: window.text_system().clone(),
3797 editor_style: self.style.clone().unwrap(),
3798 rem_size: window.rem_size(),
3799 scroll_anchor: self.scroll_manager.anchor(),
3800 visible_rows: self.visible_line_count(),
3801 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3802 }
3803 }
3804
3805 pub fn splice_inlays(
3806 &self,
3807 to_remove: &[InlayId],
3808 to_insert: Vec<Inlay>,
3809 cx: &mut Context<Self>,
3810 ) {
3811 self.display_map.update(cx, |display_map, cx| {
3812 display_map.splice_inlays(to_remove, to_insert, cx)
3813 });
3814 cx.notify();
3815 }
3816
3817 fn trigger_on_type_formatting(
3818 &self,
3819 input: String,
3820 window: &mut Window,
3821 cx: &mut Context<Self>,
3822 ) -> Option<Task<Result<()>>> {
3823 if input.len() != 1 {
3824 return None;
3825 }
3826
3827 let project = self.project.as_ref()?;
3828 let position = self.selections.newest_anchor().head();
3829 let (buffer, buffer_position) = self
3830 .buffer
3831 .read(cx)
3832 .text_anchor_for_position(position, cx)?;
3833
3834 let settings = language_settings::language_settings(
3835 buffer
3836 .read(cx)
3837 .language_at(buffer_position)
3838 .map(|l| l.name()),
3839 buffer.read(cx).file(),
3840 cx,
3841 );
3842 if !settings.use_on_type_format {
3843 return None;
3844 }
3845
3846 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3847 // hence we do LSP request & edit on host side only — add formats to host's history.
3848 let push_to_lsp_host_history = true;
3849 // If this is not the host, append its history with new edits.
3850 let push_to_client_history = project.read(cx).is_via_collab();
3851
3852 let on_type_formatting = project.update(cx, |project, cx| {
3853 project.on_type_format(
3854 buffer.clone(),
3855 buffer_position,
3856 input,
3857 push_to_lsp_host_history,
3858 cx,
3859 )
3860 });
3861 Some(cx.spawn_in(window, |editor, mut cx| async move {
3862 if let Some(transaction) = on_type_formatting.await? {
3863 if push_to_client_history {
3864 buffer
3865 .update(&mut cx, |buffer, _| {
3866 buffer.push_transaction(transaction, Instant::now());
3867 })
3868 .ok();
3869 }
3870 editor.update(&mut cx, |editor, cx| {
3871 editor.refresh_document_highlights(cx);
3872 })?;
3873 }
3874 Ok(())
3875 }))
3876 }
3877
3878 pub fn show_completions(
3879 &mut self,
3880 options: &ShowCompletions,
3881 window: &mut Window,
3882 cx: &mut Context<Self>,
3883 ) {
3884 if self.pending_rename.is_some() {
3885 return;
3886 }
3887
3888 let Some(provider) = self.completion_provider.as_ref() else {
3889 return;
3890 };
3891
3892 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3893 return;
3894 }
3895
3896 let position = self.selections.newest_anchor().head();
3897 if position.diff_base_anchor.is_some() {
3898 return;
3899 }
3900 let (buffer, buffer_position) =
3901 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3902 output
3903 } else {
3904 return;
3905 };
3906 let show_completion_documentation = buffer
3907 .read(cx)
3908 .snapshot()
3909 .settings_at(buffer_position, cx)
3910 .show_completion_documentation;
3911
3912 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3913
3914 let trigger_kind = match &options.trigger {
3915 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3916 CompletionTriggerKind::TRIGGER_CHARACTER
3917 }
3918 _ => CompletionTriggerKind::INVOKED,
3919 };
3920 let completion_context = CompletionContext {
3921 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3922 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3923 Some(String::from(trigger))
3924 } else {
3925 None
3926 }
3927 }),
3928 trigger_kind,
3929 };
3930 let completions =
3931 provider.completions(&buffer, buffer_position, completion_context, window, cx);
3932 let sort_completions = provider.sort_completions();
3933
3934 let id = post_inc(&mut self.next_completion_id);
3935 let task = cx.spawn_in(window, |editor, mut cx| {
3936 async move {
3937 editor.update(&mut cx, |this, _| {
3938 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3939 })?;
3940 let completions = completions.await.log_err();
3941 let menu = if let Some(completions) = completions {
3942 let mut menu = CompletionsMenu::new(
3943 id,
3944 sort_completions,
3945 show_completion_documentation,
3946 position,
3947 buffer.clone(),
3948 completions.into(),
3949 );
3950
3951 menu.filter(query.as_deref(), cx.background_executor().clone())
3952 .await;
3953
3954 menu.visible().then_some(menu)
3955 } else {
3956 None
3957 };
3958
3959 editor.update_in(&mut cx, |editor, window, cx| {
3960 match editor.context_menu.borrow().as_ref() {
3961 None => {}
3962 Some(CodeContextMenu::Completions(prev_menu)) => {
3963 if prev_menu.id > id {
3964 return;
3965 }
3966 }
3967 _ => return,
3968 }
3969
3970 if editor.focus_handle.is_focused(window) && menu.is_some() {
3971 let mut menu = menu.unwrap();
3972 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3973
3974 *editor.context_menu.borrow_mut() =
3975 Some(CodeContextMenu::Completions(menu));
3976
3977 if editor.show_edit_predictions_in_menu() {
3978 editor.update_visible_inline_completion(window, cx);
3979 } else {
3980 editor.discard_inline_completion(false, cx);
3981 }
3982
3983 cx.notify();
3984 } else if editor.completion_tasks.len() <= 1 {
3985 // If there are no more completion tasks and the last menu was
3986 // empty, we should hide it.
3987 let was_hidden = editor.hide_context_menu(window, cx).is_none();
3988 // If it was already hidden and we don't show inline
3989 // completions in the menu, we should also show the
3990 // inline-completion when available.
3991 if was_hidden && editor.show_edit_predictions_in_menu() {
3992 editor.update_visible_inline_completion(window, cx);
3993 }
3994 }
3995 })?;
3996
3997 Ok::<_, anyhow::Error>(())
3998 }
3999 .log_err()
4000 });
4001
4002 self.completion_tasks.push((id, task));
4003 }
4004
4005 pub fn confirm_completion(
4006 &mut self,
4007 action: &ConfirmCompletion,
4008 window: &mut Window,
4009 cx: &mut Context<Self>,
4010 ) -> Option<Task<Result<()>>> {
4011 self.do_completion(action.item_ix, CompletionIntent::Complete, window, cx)
4012 }
4013
4014 pub fn compose_completion(
4015 &mut self,
4016 action: &ComposeCompletion,
4017 window: &mut Window,
4018 cx: &mut Context<Self>,
4019 ) -> Option<Task<Result<()>>> {
4020 self.do_completion(action.item_ix, CompletionIntent::Compose, window, cx)
4021 }
4022
4023 fn do_completion(
4024 &mut self,
4025 item_ix: Option<usize>,
4026 intent: CompletionIntent,
4027 window: &mut Window,
4028 cx: &mut Context<Editor>,
4029 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4030 use language::ToOffset as _;
4031
4032 let completions_menu =
4033 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(window, cx)? {
4034 menu
4035 } else {
4036 return None;
4037 };
4038
4039 let entries = completions_menu.entries.borrow();
4040 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
4041 if self.show_edit_predictions_in_menu() {
4042 self.discard_inline_completion(true, cx);
4043 }
4044 let candidate_id = mat.candidate_id;
4045 drop(entries);
4046
4047 let buffer_handle = completions_menu.buffer;
4048 let completion = completions_menu
4049 .completions
4050 .borrow()
4051 .get(candidate_id)?
4052 .clone();
4053 cx.stop_propagation();
4054
4055 let snippet;
4056 let text;
4057
4058 if completion.is_snippet() {
4059 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4060 text = snippet.as_ref().unwrap().text.clone();
4061 } else {
4062 snippet = None;
4063 text = completion.new_text.clone();
4064 };
4065 let selections = self.selections.all::<usize>(cx);
4066 let buffer = buffer_handle.read(cx);
4067 let old_range = completion.old_range.to_offset(buffer);
4068 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4069
4070 let newest_selection = self.selections.newest_anchor();
4071 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4072 return None;
4073 }
4074
4075 let lookbehind = newest_selection
4076 .start
4077 .text_anchor
4078 .to_offset(buffer)
4079 .saturating_sub(old_range.start);
4080 let lookahead = old_range
4081 .end
4082 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4083 let mut common_prefix_len = old_text
4084 .bytes()
4085 .zip(text.bytes())
4086 .take_while(|(a, b)| a == b)
4087 .count();
4088
4089 let snapshot = self.buffer.read(cx).snapshot(cx);
4090 let mut range_to_replace: Option<Range<isize>> = None;
4091 let mut ranges = Vec::new();
4092 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4093 for selection in &selections {
4094 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4095 let start = selection.start.saturating_sub(lookbehind);
4096 let end = selection.end + lookahead;
4097 if selection.id == newest_selection.id {
4098 range_to_replace = Some(
4099 ((start + common_prefix_len) as isize - selection.start as isize)
4100 ..(end as isize - selection.start as isize),
4101 );
4102 }
4103 ranges.push(start + common_prefix_len..end);
4104 } else {
4105 common_prefix_len = 0;
4106 ranges.clear();
4107 ranges.extend(selections.iter().map(|s| {
4108 if s.id == newest_selection.id {
4109 range_to_replace = Some(
4110 old_range.start.to_offset_utf16(&snapshot).0 as isize
4111 - selection.start as isize
4112 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4113 - selection.start as isize,
4114 );
4115 old_range.clone()
4116 } else {
4117 s.start..s.end
4118 }
4119 }));
4120 break;
4121 }
4122 if !self.linked_edit_ranges.is_empty() {
4123 let start_anchor = snapshot.anchor_before(selection.head());
4124 let end_anchor = snapshot.anchor_after(selection.tail());
4125 if let Some(ranges) = self
4126 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4127 {
4128 for (buffer, edits) in ranges {
4129 linked_edits.entry(buffer.clone()).or_default().extend(
4130 edits
4131 .into_iter()
4132 .map(|range| (range, text[common_prefix_len..].to_owned())),
4133 );
4134 }
4135 }
4136 }
4137 }
4138 let text = &text[common_prefix_len..];
4139
4140 cx.emit(EditorEvent::InputHandled {
4141 utf16_range_to_replace: range_to_replace,
4142 text: text.into(),
4143 });
4144
4145 self.transact(window, cx, |this, window, cx| {
4146 if let Some(mut snippet) = snippet {
4147 snippet.text = text.to_string();
4148 for tabstop in snippet
4149 .tabstops
4150 .iter_mut()
4151 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4152 {
4153 tabstop.start -= common_prefix_len as isize;
4154 tabstop.end -= common_prefix_len as isize;
4155 }
4156
4157 this.insert_snippet(&ranges, snippet, window, cx).log_err();
4158 } else {
4159 this.buffer.update(cx, |buffer, cx| {
4160 buffer.edit(
4161 ranges.iter().map(|range| (range.clone(), text)),
4162 this.autoindent_mode.clone(),
4163 cx,
4164 );
4165 });
4166 }
4167 for (buffer, edits) in linked_edits {
4168 buffer.update(cx, |buffer, cx| {
4169 let snapshot = buffer.snapshot();
4170 let edits = edits
4171 .into_iter()
4172 .map(|(range, text)| {
4173 use text::ToPoint as TP;
4174 let end_point = TP::to_point(&range.end, &snapshot);
4175 let start_point = TP::to_point(&range.start, &snapshot);
4176 (start_point..end_point, text)
4177 })
4178 .sorted_by_key(|(range, _)| range.start)
4179 .collect::<Vec<_>>();
4180 buffer.edit(edits, None, cx);
4181 })
4182 }
4183
4184 this.refresh_inline_completion(true, false, window, cx);
4185 });
4186
4187 let show_new_completions_on_confirm = completion
4188 .confirm
4189 .as_ref()
4190 .map_or(false, |confirm| confirm(intent, window, cx));
4191 if show_new_completions_on_confirm {
4192 self.show_completions(&ShowCompletions { trigger: None }, window, cx);
4193 }
4194
4195 let provider = self.completion_provider.as_ref()?;
4196 drop(completion);
4197 let apply_edits = provider.apply_additional_edits_for_completion(
4198 buffer_handle,
4199 completions_menu.completions.clone(),
4200 candidate_id,
4201 true,
4202 cx,
4203 );
4204
4205 let editor_settings = EditorSettings::get_global(cx);
4206 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4207 // After the code completion is finished, users often want to know what signatures are needed.
4208 // so we should automatically call signature_help
4209 self.show_signature_help(&ShowSignatureHelp, window, cx);
4210 }
4211
4212 Some(cx.foreground_executor().spawn(async move {
4213 apply_edits.await?;
4214 Ok(())
4215 }))
4216 }
4217
4218 pub fn toggle_code_actions(
4219 &mut self,
4220 action: &ToggleCodeActions,
4221 window: &mut Window,
4222 cx: &mut Context<Self>,
4223 ) {
4224 let mut context_menu = self.context_menu.borrow_mut();
4225 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4226 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4227 // Toggle if we're selecting the same one
4228 *context_menu = None;
4229 cx.notify();
4230 return;
4231 } else {
4232 // Otherwise, clear it and start a new one
4233 *context_menu = None;
4234 cx.notify();
4235 }
4236 }
4237 drop(context_menu);
4238 let snapshot = self.snapshot(window, cx);
4239 let deployed_from_indicator = action.deployed_from_indicator;
4240 let mut task = self.code_actions_task.take();
4241 let action = action.clone();
4242 cx.spawn_in(window, |editor, mut cx| async move {
4243 while let Some(prev_task) = task {
4244 prev_task.await.log_err();
4245 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4246 }
4247
4248 let spawned_test_task = editor.update_in(&mut cx, |editor, window, cx| {
4249 if editor.focus_handle.is_focused(window) {
4250 let multibuffer_point = action
4251 .deployed_from_indicator
4252 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4253 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4254 let (buffer, buffer_row) = snapshot
4255 .buffer_snapshot
4256 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4257 .and_then(|(buffer_snapshot, range)| {
4258 editor
4259 .buffer
4260 .read(cx)
4261 .buffer(buffer_snapshot.remote_id())
4262 .map(|buffer| (buffer, range.start.row))
4263 })?;
4264 let (_, code_actions) = editor
4265 .available_code_actions
4266 .clone()
4267 .and_then(|(location, code_actions)| {
4268 let snapshot = location.buffer.read(cx).snapshot();
4269 let point_range = location.range.to_point(&snapshot);
4270 let point_range = point_range.start.row..=point_range.end.row;
4271 if point_range.contains(&buffer_row) {
4272 Some((location, code_actions))
4273 } else {
4274 None
4275 }
4276 })
4277 .unzip();
4278 let buffer_id = buffer.read(cx).remote_id();
4279 let tasks = editor
4280 .tasks
4281 .get(&(buffer_id, buffer_row))
4282 .map(|t| Arc::new(t.to_owned()));
4283 if tasks.is_none() && code_actions.is_none() {
4284 return None;
4285 }
4286
4287 editor.completion_tasks.clear();
4288 editor.discard_inline_completion(false, cx);
4289 let task_context =
4290 tasks
4291 .as_ref()
4292 .zip(editor.project.clone())
4293 .map(|(tasks, project)| {
4294 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4295 });
4296
4297 Some(cx.spawn_in(window, |editor, mut cx| async move {
4298 let task_context = match task_context {
4299 Some(task_context) => task_context.await,
4300 None => None,
4301 };
4302 let resolved_tasks =
4303 tasks.zip(task_context).map(|(tasks, task_context)| {
4304 Rc::new(ResolvedTasks {
4305 templates: tasks.resolve(&task_context).collect(),
4306 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4307 multibuffer_point.row,
4308 tasks.column,
4309 )),
4310 })
4311 });
4312 let spawn_straight_away = resolved_tasks
4313 .as_ref()
4314 .map_or(false, |tasks| tasks.templates.len() == 1)
4315 && code_actions
4316 .as_ref()
4317 .map_or(true, |actions| actions.is_empty());
4318 if let Ok(task) = editor.update_in(&mut cx, |editor, window, cx| {
4319 *editor.context_menu.borrow_mut() =
4320 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4321 buffer,
4322 actions: CodeActionContents {
4323 tasks: resolved_tasks,
4324 actions: code_actions,
4325 },
4326 selected_item: Default::default(),
4327 scroll_handle: UniformListScrollHandle::default(),
4328 deployed_from_indicator,
4329 }));
4330 if spawn_straight_away {
4331 if let Some(task) = editor.confirm_code_action(
4332 &ConfirmCodeAction { item_ix: Some(0) },
4333 window,
4334 cx,
4335 ) {
4336 cx.notify();
4337 return task;
4338 }
4339 }
4340 cx.notify();
4341 Task::ready(Ok(()))
4342 }) {
4343 task.await
4344 } else {
4345 Ok(())
4346 }
4347 }))
4348 } else {
4349 Some(Task::ready(Ok(())))
4350 }
4351 })?;
4352 if let Some(task) = spawned_test_task {
4353 task.await?;
4354 }
4355
4356 Ok::<_, anyhow::Error>(())
4357 })
4358 .detach_and_log_err(cx);
4359 }
4360
4361 pub fn confirm_code_action(
4362 &mut self,
4363 action: &ConfirmCodeAction,
4364 window: &mut Window,
4365 cx: &mut Context<Self>,
4366 ) -> Option<Task<Result<()>>> {
4367 let actions_menu =
4368 if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(window, cx)? {
4369 menu
4370 } else {
4371 return None;
4372 };
4373 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4374 let action = actions_menu.actions.get(action_ix)?;
4375 let title = action.label();
4376 let buffer = actions_menu.buffer;
4377 let workspace = self.workspace()?;
4378
4379 match action {
4380 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4381 workspace.update(cx, |workspace, cx| {
4382 workspace::tasks::schedule_resolved_task(
4383 workspace,
4384 task_source_kind,
4385 resolved_task,
4386 false,
4387 cx,
4388 );
4389
4390 Some(Task::ready(Ok(())))
4391 })
4392 }
4393 CodeActionsItem::CodeAction {
4394 excerpt_id,
4395 action,
4396 provider,
4397 } => {
4398 let apply_code_action =
4399 provider.apply_code_action(buffer, action, excerpt_id, true, window, cx);
4400 let workspace = workspace.downgrade();
4401 Some(cx.spawn_in(window, |editor, cx| async move {
4402 let project_transaction = apply_code_action.await?;
4403 Self::open_project_transaction(
4404 &editor,
4405 workspace,
4406 project_transaction,
4407 title,
4408 cx,
4409 )
4410 .await
4411 }))
4412 }
4413 }
4414 }
4415
4416 pub async fn open_project_transaction(
4417 this: &WeakEntity<Editor>,
4418 workspace: WeakEntity<Workspace>,
4419 transaction: ProjectTransaction,
4420 title: String,
4421 mut cx: AsyncWindowContext,
4422 ) -> Result<()> {
4423 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4424 cx.update(|_, cx| {
4425 entries.sort_unstable_by_key(|(buffer, _)| {
4426 buffer.read(cx).file().map(|f| f.path().clone())
4427 });
4428 })?;
4429
4430 // If the project transaction's edits are all contained within this editor, then
4431 // avoid opening a new editor to display them.
4432
4433 if let Some((buffer, transaction)) = entries.first() {
4434 if entries.len() == 1 {
4435 let excerpt = this.update(&mut cx, |editor, cx| {
4436 editor
4437 .buffer()
4438 .read(cx)
4439 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4440 })?;
4441 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4442 if excerpted_buffer == *buffer {
4443 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4444 let excerpt_range = excerpt_range.to_offset(buffer);
4445 buffer
4446 .edited_ranges_for_transaction::<usize>(transaction)
4447 .all(|range| {
4448 excerpt_range.start <= range.start
4449 && excerpt_range.end >= range.end
4450 })
4451 })?;
4452
4453 if all_edits_within_excerpt {
4454 return Ok(());
4455 }
4456 }
4457 }
4458 }
4459 } else {
4460 return Ok(());
4461 }
4462
4463 let mut ranges_to_highlight = Vec::new();
4464 let excerpt_buffer = cx.new(|cx| {
4465 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4466 for (buffer_handle, transaction) in &entries {
4467 let buffer = buffer_handle.read(cx);
4468 ranges_to_highlight.extend(
4469 multibuffer.push_excerpts_with_context_lines(
4470 buffer_handle.clone(),
4471 buffer
4472 .edited_ranges_for_transaction::<usize>(transaction)
4473 .collect(),
4474 DEFAULT_MULTIBUFFER_CONTEXT,
4475 cx,
4476 ),
4477 );
4478 }
4479 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4480 multibuffer
4481 })?;
4482
4483 workspace.update_in(&mut cx, |workspace, window, cx| {
4484 let project = workspace.project().clone();
4485 let editor = cx
4486 .new(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, window, cx));
4487 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, window, cx);
4488 editor.update(cx, |editor, cx| {
4489 editor.highlight_background::<Self>(
4490 &ranges_to_highlight,
4491 |theme| theme.editor_highlighted_line_background,
4492 cx,
4493 );
4494 });
4495 })?;
4496
4497 Ok(())
4498 }
4499
4500 pub fn clear_code_action_providers(&mut self) {
4501 self.code_action_providers.clear();
4502 self.available_code_actions.take();
4503 }
4504
4505 pub fn add_code_action_provider(
4506 &mut self,
4507 provider: Rc<dyn CodeActionProvider>,
4508 window: &mut Window,
4509 cx: &mut Context<Self>,
4510 ) {
4511 if self
4512 .code_action_providers
4513 .iter()
4514 .any(|existing_provider| existing_provider.id() == provider.id())
4515 {
4516 return;
4517 }
4518
4519 self.code_action_providers.push(provider);
4520 self.refresh_code_actions(window, cx);
4521 }
4522
4523 pub fn remove_code_action_provider(
4524 &mut self,
4525 id: Arc<str>,
4526 window: &mut Window,
4527 cx: &mut Context<Self>,
4528 ) {
4529 self.code_action_providers
4530 .retain(|provider| provider.id() != id);
4531 self.refresh_code_actions(window, cx);
4532 }
4533
4534 fn refresh_code_actions(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Option<()> {
4535 let buffer = self.buffer.read(cx);
4536 let newest_selection = self.selections.newest_anchor().clone();
4537 if newest_selection.head().diff_base_anchor.is_some() {
4538 return None;
4539 }
4540 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4541 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4542 if start_buffer != end_buffer {
4543 return None;
4544 }
4545
4546 self.code_actions_task = Some(cx.spawn_in(window, |this, mut cx| async move {
4547 cx.background_executor()
4548 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4549 .await;
4550
4551 let (providers, tasks) = this.update_in(&mut cx, |this, window, cx| {
4552 let providers = this.code_action_providers.clone();
4553 let tasks = this
4554 .code_action_providers
4555 .iter()
4556 .map(|provider| provider.code_actions(&start_buffer, start..end, window, cx))
4557 .collect::<Vec<_>>();
4558 (providers, tasks)
4559 })?;
4560
4561 let mut actions = Vec::new();
4562 for (provider, provider_actions) in
4563 providers.into_iter().zip(future::join_all(tasks).await)
4564 {
4565 if let Some(provider_actions) = provider_actions.log_err() {
4566 actions.extend(provider_actions.into_iter().map(|action| {
4567 AvailableCodeAction {
4568 excerpt_id: newest_selection.start.excerpt_id,
4569 action,
4570 provider: provider.clone(),
4571 }
4572 }));
4573 }
4574 }
4575
4576 this.update(&mut cx, |this, cx| {
4577 this.available_code_actions = if actions.is_empty() {
4578 None
4579 } else {
4580 Some((
4581 Location {
4582 buffer: start_buffer,
4583 range: start..end,
4584 },
4585 actions.into(),
4586 ))
4587 };
4588 cx.notify();
4589 })
4590 }));
4591 None
4592 }
4593
4594 fn start_inline_blame_timer(&mut self, window: &mut Window, cx: &mut Context<Self>) {
4595 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4596 self.show_git_blame_inline = false;
4597
4598 self.show_git_blame_inline_delay_task =
4599 Some(cx.spawn_in(window, |this, mut cx| async move {
4600 cx.background_executor().timer(delay).await;
4601
4602 this.update(&mut cx, |this, cx| {
4603 this.show_git_blame_inline = true;
4604 cx.notify();
4605 })
4606 .log_err();
4607 }));
4608 }
4609 }
4610
4611 fn refresh_document_highlights(&mut self, cx: &mut Context<Self>) -> Option<()> {
4612 if self.pending_rename.is_some() {
4613 return None;
4614 }
4615
4616 let provider = self.semantics_provider.clone()?;
4617 let buffer = self.buffer.read(cx);
4618 let newest_selection = self.selections.newest_anchor().clone();
4619 let cursor_position = newest_selection.head();
4620 let (cursor_buffer, cursor_buffer_position) =
4621 buffer.text_anchor_for_position(cursor_position, cx)?;
4622 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4623 if cursor_buffer != tail_buffer {
4624 return None;
4625 }
4626 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4627 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4628 cx.background_executor()
4629 .timer(Duration::from_millis(debounce))
4630 .await;
4631
4632 let highlights = if let Some(highlights) = cx
4633 .update(|cx| {
4634 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4635 })
4636 .ok()
4637 .flatten()
4638 {
4639 highlights.await.log_err()
4640 } else {
4641 None
4642 };
4643
4644 if let Some(highlights) = highlights {
4645 this.update(&mut cx, |this, cx| {
4646 if this.pending_rename.is_some() {
4647 return;
4648 }
4649
4650 let buffer_id = cursor_position.buffer_id;
4651 let buffer = this.buffer.read(cx);
4652 if !buffer
4653 .text_anchor_for_position(cursor_position, cx)
4654 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4655 {
4656 return;
4657 }
4658
4659 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4660 let mut write_ranges = Vec::new();
4661 let mut read_ranges = Vec::new();
4662 for highlight in highlights {
4663 for (excerpt_id, excerpt_range) in
4664 buffer.excerpts_for_buffer(cursor_buffer.read(cx).remote_id(), cx)
4665 {
4666 let start = highlight
4667 .range
4668 .start
4669 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4670 let end = highlight
4671 .range
4672 .end
4673 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4674 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4675 continue;
4676 }
4677
4678 let range = Anchor {
4679 buffer_id,
4680 excerpt_id,
4681 text_anchor: start,
4682 diff_base_anchor: None,
4683 }..Anchor {
4684 buffer_id,
4685 excerpt_id,
4686 text_anchor: end,
4687 diff_base_anchor: None,
4688 };
4689 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4690 write_ranges.push(range);
4691 } else {
4692 read_ranges.push(range);
4693 }
4694 }
4695 }
4696
4697 this.highlight_background::<DocumentHighlightRead>(
4698 &read_ranges,
4699 |theme| theme.editor_document_highlight_read_background,
4700 cx,
4701 );
4702 this.highlight_background::<DocumentHighlightWrite>(
4703 &write_ranges,
4704 |theme| theme.editor_document_highlight_write_background,
4705 cx,
4706 );
4707 cx.notify();
4708 })
4709 .log_err();
4710 }
4711 }));
4712 None
4713 }
4714
4715 pub fn refresh_inline_completion(
4716 &mut self,
4717 debounce: bool,
4718 user_requested: bool,
4719 window: &mut Window,
4720 cx: &mut Context<Self>,
4721 ) -> Option<()> {
4722 let provider = self.edit_prediction_provider()?;
4723 let cursor = self.selections.newest_anchor().head();
4724 let (buffer, cursor_buffer_position) =
4725 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4726
4727 if !self.inline_completions_enabled_in_buffer(&buffer, cursor_buffer_position, cx) {
4728 self.discard_inline_completion(false, cx);
4729 return None;
4730 }
4731
4732 if !user_requested
4733 && (!self.should_show_edit_predictions()
4734 || !self.is_focused(window)
4735 || buffer.read(cx).is_empty())
4736 {
4737 self.discard_inline_completion(false, cx);
4738 return None;
4739 }
4740
4741 self.update_visible_inline_completion(window, cx);
4742 provider.refresh(
4743 self.project.clone(),
4744 buffer,
4745 cursor_buffer_position,
4746 debounce,
4747 cx,
4748 );
4749 Some(())
4750 }
4751
4752 fn show_edit_predictions_in_menu(&self) -> bool {
4753 match self.edit_prediction_settings {
4754 EditPredictionSettings::Disabled => false,
4755 EditPredictionSettings::Enabled { show_in_menu, .. } => show_in_menu,
4756 }
4757 }
4758
4759 pub fn edit_predictions_enabled(&self) -> bool {
4760 match self.edit_prediction_settings {
4761 EditPredictionSettings::Disabled => false,
4762 EditPredictionSettings::Enabled { .. } => true,
4763 }
4764 }
4765
4766 fn edit_prediction_requires_modifier(&self) -> bool {
4767 match self.edit_prediction_settings {
4768 EditPredictionSettings::Disabled => false,
4769 EditPredictionSettings::Enabled {
4770 preview_requires_modifier,
4771 ..
4772 } => preview_requires_modifier,
4773 }
4774 }
4775
4776 fn edit_prediction_settings_at_position(
4777 &self,
4778 buffer: &Entity<Buffer>,
4779 buffer_position: language::Anchor,
4780 cx: &App,
4781 ) -> EditPredictionSettings {
4782 if self.mode != EditorMode::Full
4783 || !self.show_inline_completions_override.unwrap_or(true)
4784 || self.inline_completions_disabled_in_scope(buffer, buffer_position, cx)
4785 {
4786 return EditPredictionSettings::Disabled;
4787 }
4788
4789 let buffer = buffer.read(cx);
4790
4791 let file = buffer.file();
4792
4793 if !language_settings(buffer.language().map(|l| l.name()), file, cx).show_edit_predictions {
4794 return EditPredictionSettings::Disabled;
4795 };
4796
4797 let by_provider = matches!(
4798 self.menu_inline_completions_policy,
4799 MenuInlineCompletionsPolicy::ByProvider
4800 );
4801
4802 let show_in_menu = by_provider
4803 && self
4804 .edit_prediction_provider
4805 .as_ref()
4806 .map_or(false, |provider| {
4807 provider.provider.show_completions_in_menu()
4808 });
4809
4810 let preview_requires_modifier =
4811 all_language_settings(file, cx).edit_predictions_mode() == EditPredictionsMode::Auto;
4812
4813 EditPredictionSettings::Enabled {
4814 show_in_menu,
4815 preview_requires_modifier,
4816 }
4817 }
4818
4819 fn should_show_edit_predictions(&self) -> bool {
4820 self.snippet_stack.is_empty() && self.edit_predictions_enabled()
4821 }
4822
4823 pub fn edit_prediction_preview_is_active(&self) -> bool {
4824 matches!(
4825 self.edit_prediction_preview,
4826 EditPredictionPreview::Active { .. }
4827 )
4828 }
4829
4830 pub fn inline_completions_enabled(&self, cx: &App) -> bool {
4831 let cursor = self.selections.newest_anchor().head();
4832 if let Some((buffer, cursor_position)) =
4833 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4834 {
4835 self.inline_completions_enabled_in_buffer(&buffer, cursor_position, cx)
4836 } else {
4837 false
4838 }
4839 }
4840
4841 fn inline_completions_enabled_in_buffer(
4842 &self,
4843 buffer: &Entity<Buffer>,
4844 buffer_position: language::Anchor,
4845 cx: &App,
4846 ) -> bool {
4847 maybe!({
4848 let provider = self.edit_prediction_provider()?;
4849 if !provider.is_enabled(&buffer, buffer_position, cx) {
4850 return Some(false);
4851 }
4852 let buffer = buffer.read(cx);
4853 let Some(file) = buffer.file() else {
4854 return Some(true);
4855 };
4856 let settings = all_language_settings(Some(file), cx);
4857 Some(settings.inline_completions_enabled_for_path(file.path()))
4858 })
4859 .unwrap_or(false)
4860 }
4861
4862 fn cycle_inline_completion(
4863 &mut self,
4864 direction: Direction,
4865 window: &mut Window,
4866 cx: &mut Context<Self>,
4867 ) -> Option<()> {
4868 let provider = self.edit_prediction_provider()?;
4869 let cursor = self.selections.newest_anchor().head();
4870 let (buffer, cursor_buffer_position) =
4871 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4872 if self.inline_completions_hidden_for_vim_mode || !self.should_show_edit_predictions() {
4873 return None;
4874 }
4875
4876 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4877 self.update_visible_inline_completion(window, cx);
4878
4879 Some(())
4880 }
4881
4882 pub fn show_inline_completion(
4883 &mut self,
4884 _: &ShowEditPrediction,
4885 window: &mut Window,
4886 cx: &mut Context<Self>,
4887 ) {
4888 if !self.has_active_inline_completion() {
4889 self.refresh_inline_completion(false, true, window, cx);
4890 return;
4891 }
4892
4893 self.update_visible_inline_completion(window, cx);
4894 }
4895
4896 pub fn display_cursor_names(
4897 &mut self,
4898 _: &DisplayCursorNames,
4899 window: &mut Window,
4900 cx: &mut Context<Self>,
4901 ) {
4902 self.show_cursor_names(window, cx);
4903 }
4904
4905 fn show_cursor_names(&mut self, window: &mut Window, cx: &mut Context<Self>) {
4906 self.show_cursor_names = true;
4907 cx.notify();
4908 cx.spawn_in(window, |this, mut cx| async move {
4909 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4910 this.update(&mut cx, |this, cx| {
4911 this.show_cursor_names = false;
4912 cx.notify()
4913 })
4914 .ok()
4915 })
4916 .detach();
4917 }
4918
4919 pub fn next_edit_prediction(
4920 &mut self,
4921 _: &NextEditPrediction,
4922 window: &mut Window,
4923 cx: &mut Context<Self>,
4924 ) {
4925 if self.has_active_inline_completion() {
4926 self.cycle_inline_completion(Direction::Next, window, cx);
4927 } else {
4928 let is_copilot_disabled = self
4929 .refresh_inline_completion(false, true, window, cx)
4930 .is_none();
4931 if is_copilot_disabled {
4932 cx.propagate();
4933 }
4934 }
4935 }
4936
4937 pub fn previous_edit_prediction(
4938 &mut self,
4939 _: &PreviousEditPrediction,
4940 window: &mut Window,
4941 cx: &mut Context<Self>,
4942 ) {
4943 if self.has_active_inline_completion() {
4944 self.cycle_inline_completion(Direction::Prev, window, cx);
4945 } else {
4946 let is_copilot_disabled = self
4947 .refresh_inline_completion(false, true, window, cx)
4948 .is_none();
4949 if is_copilot_disabled {
4950 cx.propagate();
4951 }
4952 }
4953 }
4954
4955 pub fn accept_edit_prediction(
4956 &mut self,
4957 _: &AcceptEditPrediction,
4958 window: &mut Window,
4959 cx: &mut Context<Self>,
4960 ) {
4961 if self.show_edit_predictions_in_menu() {
4962 self.hide_context_menu(window, cx);
4963 }
4964
4965 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4966 return;
4967 };
4968
4969 self.report_inline_completion_event(
4970 active_inline_completion.completion_id.clone(),
4971 true,
4972 cx,
4973 );
4974
4975 match &active_inline_completion.completion {
4976 InlineCompletion::Move { target, .. } => {
4977 let target = *target;
4978
4979 if let Some(position_map) = &self.last_position_map {
4980 if position_map
4981 .visible_row_range
4982 .contains(&target.to_display_point(&position_map.snapshot).row())
4983 || !self.edit_prediction_requires_modifier()
4984 {
4985 self.unfold_ranges(&[target..target], true, false, cx);
4986 // Note that this is also done in vim's handler of the Tab action.
4987 self.change_selections(
4988 Some(Autoscroll::newest()),
4989 window,
4990 cx,
4991 |selections| {
4992 selections.select_anchor_ranges([target..target]);
4993 },
4994 );
4995 self.clear_row_highlights::<EditPredictionPreview>();
4996
4997 self.edit_prediction_preview = EditPredictionPreview::Active {
4998 previous_scroll_position: None,
4999 };
5000 } else {
5001 self.edit_prediction_preview = EditPredictionPreview::Active {
5002 previous_scroll_position: Some(position_map.snapshot.scroll_anchor),
5003 };
5004 self.highlight_rows::<EditPredictionPreview>(
5005 target..target,
5006 cx.theme().colors().editor_highlighted_line_background,
5007 true,
5008 cx,
5009 );
5010 self.request_autoscroll(Autoscroll::fit(), cx);
5011 }
5012 }
5013 }
5014 InlineCompletion::Edit { edits, .. } => {
5015 if let Some(provider) = self.edit_prediction_provider() {
5016 provider.accept(cx);
5017 }
5018
5019 let snapshot = self.buffer.read(cx).snapshot(cx);
5020 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
5021
5022 self.buffer.update(cx, |buffer, cx| {
5023 buffer.edit(edits.iter().cloned(), None, cx)
5024 });
5025
5026 self.change_selections(None, window, cx, |s| {
5027 s.select_anchor_ranges([last_edit_end..last_edit_end])
5028 });
5029
5030 self.update_visible_inline_completion(window, cx);
5031 if self.active_inline_completion.is_none() {
5032 self.refresh_inline_completion(true, true, window, cx);
5033 }
5034
5035 cx.notify();
5036 }
5037 }
5038
5039 self.edit_prediction_requires_modifier_in_leading_space = false;
5040 }
5041
5042 pub fn accept_partial_inline_completion(
5043 &mut self,
5044 _: &AcceptPartialEditPrediction,
5045 window: &mut Window,
5046 cx: &mut Context<Self>,
5047 ) {
5048 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
5049 return;
5050 };
5051 if self.selections.count() != 1 {
5052 return;
5053 }
5054
5055 self.report_inline_completion_event(
5056 active_inline_completion.completion_id.clone(),
5057 true,
5058 cx,
5059 );
5060
5061 match &active_inline_completion.completion {
5062 InlineCompletion::Move { target, .. } => {
5063 let target = *target;
5064 self.change_selections(Some(Autoscroll::newest()), window, cx, |selections| {
5065 selections.select_anchor_ranges([target..target]);
5066 });
5067 }
5068 InlineCompletion::Edit { edits, .. } => {
5069 // Find an insertion that starts at the cursor position.
5070 let snapshot = self.buffer.read(cx).snapshot(cx);
5071 let cursor_offset = self.selections.newest::<usize>(cx).head();
5072 let insertion = edits.iter().find_map(|(range, text)| {
5073 let range = range.to_offset(&snapshot);
5074 if range.is_empty() && range.start == cursor_offset {
5075 Some(text)
5076 } else {
5077 None
5078 }
5079 });
5080
5081 if let Some(text) = insertion {
5082 let mut partial_completion = text
5083 .chars()
5084 .by_ref()
5085 .take_while(|c| c.is_alphabetic())
5086 .collect::<String>();
5087 if partial_completion.is_empty() {
5088 partial_completion = text
5089 .chars()
5090 .by_ref()
5091 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5092 .collect::<String>();
5093 }
5094
5095 cx.emit(EditorEvent::InputHandled {
5096 utf16_range_to_replace: None,
5097 text: partial_completion.clone().into(),
5098 });
5099
5100 self.insert_with_autoindent_mode(&partial_completion, None, window, cx);
5101
5102 self.refresh_inline_completion(true, true, window, cx);
5103 cx.notify();
5104 } else {
5105 self.accept_edit_prediction(&Default::default(), window, cx);
5106 }
5107 }
5108 }
5109 }
5110
5111 fn discard_inline_completion(
5112 &mut self,
5113 should_report_inline_completion_event: bool,
5114 cx: &mut Context<Self>,
5115 ) -> bool {
5116 if should_report_inline_completion_event {
5117 let completion_id = self
5118 .active_inline_completion
5119 .as_ref()
5120 .and_then(|active_completion| active_completion.completion_id.clone());
5121
5122 self.report_inline_completion_event(completion_id, false, cx);
5123 }
5124
5125 if let Some(provider) = self.edit_prediction_provider() {
5126 provider.discard(cx);
5127 }
5128
5129 self.take_active_inline_completion(cx)
5130 }
5131
5132 fn report_inline_completion_event(&self, id: Option<SharedString>, accepted: bool, cx: &App) {
5133 let Some(provider) = self.edit_prediction_provider() else {
5134 return;
5135 };
5136
5137 let Some((_, buffer, _)) = self
5138 .buffer
5139 .read(cx)
5140 .excerpt_containing(self.selections.newest_anchor().head(), cx)
5141 else {
5142 return;
5143 };
5144
5145 let extension = buffer
5146 .read(cx)
5147 .file()
5148 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
5149
5150 let event_type = match accepted {
5151 true => "Edit Prediction Accepted",
5152 false => "Edit Prediction Discarded",
5153 };
5154 telemetry::event!(
5155 event_type,
5156 provider = provider.name(),
5157 prediction_id = id,
5158 suggestion_accepted = accepted,
5159 file_extension = extension,
5160 );
5161 }
5162
5163 pub fn has_active_inline_completion(&self) -> bool {
5164 self.active_inline_completion.is_some()
5165 }
5166
5167 fn take_active_inline_completion(&mut self, cx: &mut Context<Self>) -> bool {
5168 let Some(active_inline_completion) = self.active_inline_completion.take() else {
5169 return false;
5170 };
5171
5172 self.splice_inlays(&active_inline_completion.inlay_ids, Default::default(), cx);
5173 self.clear_highlights::<InlineCompletionHighlight>(cx);
5174 self.stale_inline_completion_in_menu = Some(active_inline_completion);
5175 true
5176 }
5177
5178 /// Returns true when we're displaying the edit prediction popover below the cursor
5179 /// like we are not previewing and the LSP autocomplete menu is visible
5180 /// or we are in `when_holding_modifier` mode.
5181 pub fn edit_prediction_visible_in_cursor_popover(&self, has_completion: bool) -> bool {
5182 if self.edit_prediction_preview_is_active()
5183 || !self.show_edit_predictions_in_menu()
5184 || !self.edit_predictions_enabled()
5185 {
5186 return false;
5187 }
5188
5189 if self.has_visible_completions_menu() {
5190 return true;
5191 }
5192
5193 has_completion && self.edit_prediction_requires_modifier()
5194 }
5195
5196 fn handle_modifiers_changed(
5197 &mut self,
5198 modifiers: Modifiers,
5199 position_map: &PositionMap,
5200 window: &mut Window,
5201 cx: &mut Context<Self>,
5202 ) {
5203 if self.show_edit_predictions_in_menu() {
5204 self.update_edit_prediction_preview(&modifiers, window, cx);
5205 }
5206
5207 let mouse_position = window.mouse_position();
5208 if !position_map.text_hitbox.is_hovered(window) {
5209 return;
5210 }
5211
5212 self.update_hovered_link(
5213 position_map.point_for_position(mouse_position),
5214 &position_map.snapshot,
5215 modifiers,
5216 window,
5217 cx,
5218 )
5219 }
5220
5221 fn update_edit_prediction_preview(
5222 &mut self,
5223 modifiers: &Modifiers,
5224 window: &mut Window,
5225 cx: &mut Context<Self>,
5226 ) {
5227 let accept_keybind = self.accept_edit_prediction_keybind(window, cx);
5228 let Some(accept_keystroke) = accept_keybind.keystroke() else {
5229 return;
5230 };
5231
5232 if &accept_keystroke.modifiers == modifiers && accept_keystroke.modifiers.modified() {
5233 if matches!(
5234 self.edit_prediction_preview,
5235 EditPredictionPreview::Inactive
5236 ) {
5237 self.edit_prediction_preview = EditPredictionPreview::Active {
5238 previous_scroll_position: None,
5239 };
5240
5241 self.update_visible_inline_completion(window, cx);
5242 cx.notify();
5243 }
5244 } else if let EditPredictionPreview::Active {
5245 previous_scroll_position,
5246 } = self.edit_prediction_preview
5247 {
5248 if let (Some(previous_scroll_position), Some(position_map)) =
5249 (previous_scroll_position, self.last_position_map.as_ref())
5250 {
5251 self.set_scroll_position(
5252 previous_scroll_position
5253 .scroll_position(&position_map.snapshot.display_snapshot),
5254 window,
5255 cx,
5256 );
5257 }
5258
5259 self.edit_prediction_preview = EditPredictionPreview::Inactive;
5260 self.clear_row_highlights::<EditPredictionPreview>();
5261 self.update_visible_inline_completion(window, cx);
5262 cx.notify();
5263 }
5264 }
5265
5266 fn update_visible_inline_completion(
5267 &mut self,
5268 _window: &mut Window,
5269 cx: &mut Context<Self>,
5270 ) -> Option<()> {
5271 let selection = self.selections.newest_anchor();
5272 let cursor = selection.head();
5273 let multibuffer = self.buffer.read(cx).snapshot(cx);
5274 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
5275 let excerpt_id = cursor.excerpt_id;
5276
5277 let show_in_menu = self.show_edit_predictions_in_menu();
5278 let completions_menu_has_precedence = !show_in_menu
5279 && (self.context_menu.borrow().is_some()
5280 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
5281
5282 if completions_menu_has_precedence
5283 || !offset_selection.is_empty()
5284 || self
5285 .active_inline_completion
5286 .as_ref()
5287 .map_or(false, |completion| {
5288 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
5289 let invalidation_range = invalidation_range.start..=invalidation_range.end;
5290 !invalidation_range.contains(&offset_selection.head())
5291 })
5292 {
5293 self.discard_inline_completion(false, cx);
5294 return None;
5295 }
5296
5297 self.take_active_inline_completion(cx);
5298 let Some(provider) = self.edit_prediction_provider() else {
5299 self.edit_prediction_settings = EditPredictionSettings::Disabled;
5300 return None;
5301 };
5302
5303 let (buffer, cursor_buffer_position) =
5304 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5305
5306 self.edit_prediction_settings =
5307 self.edit_prediction_settings_at_position(&buffer, cursor_buffer_position, cx);
5308
5309 self.edit_prediction_cursor_on_leading_whitespace =
5310 multibuffer.is_line_whitespace_upto(cursor);
5311
5312 let inline_completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
5313 let edits = inline_completion
5314 .edits
5315 .into_iter()
5316 .flat_map(|(range, new_text)| {
5317 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
5318 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
5319 Some((start..end, new_text))
5320 })
5321 .collect::<Vec<_>>();
5322 if edits.is_empty() {
5323 return None;
5324 }
5325
5326 let first_edit_start = edits.first().unwrap().0.start;
5327 let first_edit_start_point = first_edit_start.to_point(&multibuffer);
5328 let edit_start_row = first_edit_start_point.row.saturating_sub(2);
5329
5330 let last_edit_end = edits.last().unwrap().0.end;
5331 let last_edit_end_point = last_edit_end.to_point(&multibuffer);
5332 let edit_end_row = cmp::min(multibuffer.max_point().row, last_edit_end_point.row + 2);
5333
5334 let cursor_row = cursor.to_point(&multibuffer).row;
5335
5336 let snapshot = multibuffer.buffer_for_excerpt(excerpt_id).cloned()?;
5337
5338 let mut inlay_ids = Vec::new();
5339 let invalidation_row_range;
5340 let move_invalidation_row_range = if cursor_row < edit_start_row {
5341 Some(cursor_row..edit_end_row)
5342 } else if cursor_row > edit_end_row {
5343 Some(edit_start_row..cursor_row)
5344 } else {
5345 None
5346 };
5347 let is_move =
5348 move_invalidation_row_range.is_some() || self.inline_completions_hidden_for_vim_mode;
5349 let completion = if is_move {
5350 invalidation_row_range =
5351 move_invalidation_row_range.unwrap_or(edit_start_row..edit_end_row);
5352 let target = first_edit_start;
5353 InlineCompletion::Move { target, snapshot }
5354 } else {
5355 let show_completions_in_buffer = !self.edit_prediction_visible_in_cursor_popover(true)
5356 && !self.inline_completions_hidden_for_vim_mode;
5357
5358 if show_completions_in_buffer {
5359 if edits
5360 .iter()
5361 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
5362 {
5363 let mut inlays = Vec::new();
5364 for (range, new_text) in &edits {
5365 let inlay = Inlay::inline_completion(
5366 post_inc(&mut self.next_inlay_id),
5367 range.start,
5368 new_text.as_str(),
5369 );
5370 inlay_ids.push(inlay.id);
5371 inlays.push(inlay);
5372 }
5373
5374 self.splice_inlays(&[], inlays, cx);
5375 } else {
5376 let background_color = cx.theme().status().deleted_background;
5377 self.highlight_text::<InlineCompletionHighlight>(
5378 edits.iter().map(|(range, _)| range.clone()).collect(),
5379 HighlightStyle {
5380 background_color: Some(background_color),
5381 ..Default::default()
5382 },
5383 cx,
5384 );
5385 }
5386 }
5387
5388 invalidation_row_range = edit_start_row..edit_end_row;
5389
5390 let display_mode = if all_edits_insertions_or_deletions(&edits, &multibuffer) {
5391 if provider.show_tab_accept_marker() {
5392 EditDisplayMode::TabAccept
5393 } else {
5394 EditDisplayMode::Inline
5395 }
5396 } else {
5397 EditDisplayMode::DiffPopover
5398 };
5399
5400 InlineCompletion::Edit {
5401 edits,
5402 edit_preview: inline_completion.edit_preview,
5403 display_mode,
5404 snapshot,
5405 }
5406 };
5407
5408 let invalidation_range = multibuffer
5409 .anchor_before(Point::new(invalidation_row_range.start, 0))
5410 ..multibuffer.anchor_after(Point::new(
5411 invalidation_row_range.end,
5412 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
5413 ));
5414
5415 self.stale_inline_completion_in_menu = None;
5416 self.active_inline_completion = Some(InlineCompletionState {
5417 inlay_ids,
5418 completion,
5419 completion_id: inline_completion.id,
5420 invalidation_range,
5421 });
5422
5423 cx.notify();
5424
5425 Some(())
5426 }
5427
5428 pub fn edit_prediction_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5429 Some(self.edit_prediction_provider.as_ref()?.provider.clone())
5430 }
5431
5432 fn render_code_actions_indicator(
5433 &self,
5434 _style: &EditorStyle,
5435 row: DisplayRow,
5436 is_active: bool,
5437 cx: &mut Context<Self>,
5438 ) -> Option<IconButton> {
5439 if self.available_code_actions.is_some() {
5440 Some(
5441 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5442 .shape(ui::IconButtonShape::Square)
5443 .icon_size(IconSize::XSmall)
5444 .icon_color(Color::Muted)
5445 .toggle_state(is_active)
5446 .tooltip({
5447 let focus_handle = self.focus_handle.clone();
5448 move |window, cx| {
5449 Tooltip::for_action_in(
5450 "Toggle Code Actions",
5451 &ToggleCodeActions {
5452 deployed_from_indicator: None,
5453 },
5454 &focus_handle,
5455 window,
5456 cx,
5457 )
5458 }
5459 })
5460 .on_click(cx.listener(move |editor, _e, window, cx| {
5461 window.focus(&editor.focus_handle(cx));
5462 editor.toggle_code_actions(
5463 &ToggleCodeActions {
5464 deployed_from_indicator: Some(row),
5465 },
5466 window,
5467 cx,
5468 );
5469 })),
5470 )
5471 } else {
5472 None
5473 }
5474 }
5475
5476 fn clear_tasks(&mut self) {
5477 self.tasks.clear()
5478 }
5479
5480 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5481 if self.tasks.insert(key, value).is_some() {
5482 // This case should hopefully be rare, but just in case...
5483 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5484 }
5485 }
5486
5487 fn build_tasks_context(
5488 project: &Entity<Project>,
5489 buffer: &Entity<Buffer>,
5490 buffer_row: u32,
5491 tasks: &Arc<RunnableTasks>,
5492 cx: &mut Context<Self>,
5493 ) -> Task<Option<task::TaskContext>> {
5494 let position = Point::new(buffer_row, tasks.column);
5495 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5496 let location = Location {
5497 buffer: buffer.clone(),
5498 range: range_start..range_start,
5499 };
5500 // Fill in the environmental variables from the tree-sitter captures
5501 let mut captured_task_variables = TaskVariables::default();
5502 for (capture_name, value) in tasks.extra_variables.clone() {
5503 captured_task_variables.insert(
5504 task::VariableName::Custom(capture_name.into()),
5505 value.clone(),
5506 );
5507 }
5508 project.update(cx, |project, cx| {
5509 project.task_store().update(cx, |task_store, cx| {
5510 task_store.task_context_for_location(captured_task_variables, location, cx)
5511 })
5512 })
5513 }
5514
5515 pub fn spawn_nearest_task(
5516 &mut self,
5517 action: &SpawnNearestTask,
5518 window: &mut Window,
5519 cx: &mut Context<Self>,
5520 ) {
5521 let Some((workspace, _)) = self.workspace.clone() else {
5522 return;
5523 };
5524 let Some(project) = self.project.clone() else {
5525 return;
5526 };
5527
5528 // Try to find a closest, enclosing node using tree-sitter that has a
5529 // task
5530 let Some((buffer, buffer_row, tasks)) = self
5531 .find_enclosing_node_task(cx)
5532 // Or find the task that's closest in row-distance.
5533 .or_else(|| self.find_closest_task(cx))
5534 else {
5535 return;
5536 };
5537
5538 let reveal_strategy = action.reveal;
5539 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5540 cx.spawn_in(window, |_, mut cx| async move {
5541 let context = task_context.await?;
5542 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5543
5544 let resolved = resolved_task.resolved.as_mut()?;
5545 resolved.reveal = reveal_strategy;
5546
5547 workspace
5548 .update(&mut cx, |workspace, cx| {
5549 workspace::tasks::schedule_resolved_task(
5550 workspace,
5551 task_source_kind,
5552 resolved_task,
5553 false,
5554 cx,
5555 );
5556 })
5557 .ok()
5558 })
5559 .detach();
5560 }
5561
5562 fn find_closest_task(
5563 &mut self,
5564 cx: &mut Context<Self>,
5565 ) -> Option<(Entity<Buffer>, u32, Arc<RunnableTasks>)> {
5566 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5567
5568 let ((buffer_id, row), tasks) = self
5569 .tasks
5570 .iter()
5571 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5572
5573 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5574 let tasks = Arc::new(tasks.to_owned());
5575 Some((buffer, *row, tasks))
5576 }
5577
5578 fn find_enclosing_node_task(
5579 &mut self,
5580 cx: &mut Context<Self>,
5581 ) -> Option<(Entity<Buffer>, u32, Arc<RunnableTasks>)> {
5582 let snapshot = self.buffer.read(cx).snapshot(cx);
5583 let offset = self.selections.newest::<usize>(cx).head();
5584 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5585 let buffer_id = excerpt.buffer().remote_id();
5586
5587 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5588 let mut cursor = layer.node().walk();
5589
5590 while cursor.goto_first_child_for_byte(offset).is_some() {
5591 if cursor.node().end_byte() == offset {
5592 cursor.goto_next_sibling();
5593 }
5594 }
5595
5596 // Ascend to the smallest ancestor that contains the range and has a task.
5597 loop {
5598 let node = cursor.node();
5599 let node_range = node.byte_range();
5600 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5601
5602 // Check if this node contains our offset
5603 if node_range.start <= offset && node_range.end >= offset {
5604 // If it contains offset, check for task
5605 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5606 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5607 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5608 }
5609 }
5610
5611 if !cursor.goto_parent() {
5612 break;
5613 }
5614 }
5615 None
5616 }
5617
5618 fn render_run_indicator(
5619 &self,
5620 _style: &EditorStyle,
5621 is_active: bool,
5622 row: DisplayRow,
5623 cx: &mut Context<Self>,
5624 ) -> IconButton {
5625 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5626 .shape(ui::IconButtonShape::Square)
5627 .icon_size(IconSize::XSmall)
5628 .icon_color(Color::Muted)
5629 .toggle_state(is_active)
5630 .on_click(cx.listener(move |editor, _e, window, cx| {
5631 window.focus(&editor.focus_handle(cx));
5632 editor.toggle_code_actions(
5633 &ToggleCodeActions {
5634 deployed_from_indicator: Some(row),
5635 },
5636 window,
5637 cx,
5638 );
5639 }))
5640 }
5641
5642 pub fn context_menu_visible(&self) -> bool {
5643 !self.edit_prediction_preview_is_active()
5644 && self
5645 .context_menu
5646 .borrow()
5647 .as_ref()
5648 .map_or(false, |menu| menu.visible())
5649 }
5650
5651 fn context_menu_origin(&self) -> Option<ContextMenuOrigin> {
5652 self.context_menu
5653 .borrow()
5654 .as_ref()
5655 .map(|menu| menu.origin())
5656 }
5657
5658 fn edit_prediction_cursor_popover_height(&self) -> Pixels {
5659 px(30.)
5660 }
5661
5662 fn current_user_player_color(&self, cx: &mut App) -> PlayerColor {
5663 if self.read_only(cx) {
5664 cx.theme().players().read_only()
5665 } else {
5666 self.style.as_ref().unwrap().local_player
5667 }
5668 }
5669
5670 fn render_edit_prediction_accept_keybind(&self, window: &mut Window, cx: &App) -> Option<Div> {
5671 let accept_binding = self.accept_edit_prediction_keybind(window, cx);
5672 let accept_keystroke = accept_binding.keystroke()?;
5673
5674 let is_platform_style_mac = PlatformStyle::platform() == PlatformStyle::Mac;
5675
5676 let modifiers_color = if accept_keystroke.modifiers == window.modifiers() {
5677 Color::Accent
5678 } else {
5679 Color::Muted
5680 };
5681
5682 h_flex()
5683 .px_0p5()
5684 .when(is_platform_style_mac, |parent| parent.gap_0p5())
5685 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5686 .text_size(TextSize::XSmall.rems(cx))
5687 .child(h_flex().children(ui::render_modifiers(
5688 &accept_keystroke.modifiers,
5689 PlatformStyle::platform(),
5690 Some(modifiers_color),
5691 Some(IconSize::XSmall.rems().into()),
5692 true,
5693 )))
5694 .when(is_platform_style_mac, |parent| {
5695 parent.child(accept_keystroke.key.clone())
5696 })
5697 .when(!is_platform_style_mac, |parent| {
5698 parent.child(
5699 Key::new(
5700 util::capitalize(&accept_keystroke.key),
5701 Some(Color::Default),
5702 )
5703 .size(Some(IconSize::XSmall.rems().into())),
5704 )
5705 })
5706 .into()
5707 }
5708
5709 fn render_edit_prediction_line_popover(
5710 &self,
5711 label: impl Into<SharedString>,
5712 icon: Option<IconName>,
5713 window: &mut Window,
5714 cx: &App,
5715 ) -> Option<Div> {
5716 let bg_color = Self::edit_prediction_line_popover_bg_color(cx);
5717
5718 let padding_right = if icon.is_some() { px(4.) } else { px(8.) };
5719
5720 let result = h_flex()
5721 .gap_1()
5722 .border_1()
5723 .rounded_lg()
5724 .shadow_sm()
5725 .bg(bg_color)
5726 .border_color(cx.theme().colors().text_accent.opacity(0.4))
5727 .py_0p5()
5728 .pl_1()
5729 .pr(padding_right)
5730 .children(self.render_edit_prediction_accept_keybind(window, cx))
5731 .child(Label::new(label).size(LabelSize::Small))
5732 .when_some(icon, |element, icon| {
5733 element.child(
5734 div()
5735 .mt(px(1.5))
5736 .child(Icon::new(icon).size(IconSize::Small)),
5737 )
5738 });
5739
5740 Some(result)
5741 }
5742
5743 fn edit_prediction_line_popover_bg_color(cx: &App) -> Hsla {
5744 let accent_color = cx.theme().colors().text_accent;
5745 let editor_bg_color = cx.theme().colors().editor_background;
5746 editor_bg_color.blend(accent_color.opacity(0.1))
5747 }
5748
5749 #[allow(clippy::too_many_arguments)]
5750 fn render_edit_prediction_cursor_popover(
5751 &self,
5752 min_width: Pixels,
5753 max_width: Pixels,
5754 cursor_point: Point,
5755 style: &EditorStyle,
5756 accept_keystroke: &gpui::Keystroke,
5757 _window: &Window,
5758 cx: &mut Context<Editor>,
5759 ) -> Option<AnyElement> {
5760 let provider = self.edit_prediction_provider.as_ref()?;
5761
5762 if provider.provider.needs_terms_acceptance(cx) {
5763 return Some(
5764 h_flex()
5765 .min_w(min_width)
5766 .flex_1()
5767 .px_2()
5768 .py_1()
5769 .gap_3()
5770 .elevation_2(cx)
5771 .hover(|style| style.bg(cx.theme().colors().element_hover))
5772 .id("accept-terms")
5773 .cursor_pointer()
5774 .on_mouse_down(MouseButton::Left, |_, window, _| window.prevent_default())
5775 .on_click(cx.listener(|this, _event, window, cx| {
5776 cx.stop_propagation();
5777 this.report_editor_event("Edit Prediction Provider ToS Clicked", None, cx);
5778 window.dispatch_action(
5779 zed_actions::OpenZedPredictOnboarding.boxed_clone(),
5780 cx,
5781 );
5782 }))
5783 .child(
5784 h_flex()
5785 .flex_1()
5786 .gap_2()
5787 .child(Icon::new(IconName::ZedPredict))
5788 .child(Label::new("Accept Terms of Service"))
5789 .child(div().w_full())
5790 .child(
5791 Icon::new(IconName::ArrowUpRight)
5792 .color(Color::Muted)
5793 .size(IconSize::Small),
5794 )
5795 .into_any_element(),
5796 )
5797 .into_any(),
5798 );
5799 }
5800
5801 let is_refreshing = provider.provider.is_refreshing(cx);
5802
5803 fn pending_completion_container() -> Div {
5804 h_flex()
5805 .h_full()
5806 .flex_1()
5807 .gap_2()
5808 .child(Icon::new(IconName::ZedPredict))
5809 }
5810
5811 let completion = match &self.active_inline_completion {
5812 Some(completion) => match &completion.completion {
5813 InlineCompletion::Move {
5814 target, snapshot, ..
5815 } if !self.has_visible_completions_menu() => {
5816 use text::ToPoint as _;
5817
5818 return Some(
5819 h_flex()
5820 .px_2()
5821 .py_1()
5822 .elevation_2(cx)
5823 .border_color(cx.theme().colors().border)
5824 .rounded_tl(px(0.))
5825 .gap_2()
5826 .child(
5827 if target.text_anchor.to_point(&snapshot).row > cursor_point.row {
5828 Icon::new(IconName::ZedPredictDown)
5829 } else {
5830 Icon::new(IconName::ZedPredictUp)
5831 },
5832 )
5833 .child(Label::new("Hold").size(LabelSize::Small))
5834 .child(h_flex().children(ui::render_modifiers(
5835 &accept_keystroke.modifiers,
5836 PlatformStyle::platform(),
5837 Some(Color::Default),
5838 Some(IconSize::Small.rems().into()),
5839 false,
5840 )))
5841 .into_any(),
5842 );
5843 }
5844 _ => self.render_edit_prediction_cursor_popover_preview(
5845 completion,
5846 cursor_point,
5847 style,
5848 cx,
5849 )?,
5850 },
5851
5852 None if is_refreshing => match &self.stale_inline_completion_in_menu {
5853 Some(stale_completion) => self.render_edit_prediction_cursor_popover_preview(
5854 stale_completion,
5855 cursor_point,
5856 style,
5857 cx,
5858 )?,
5859
5860 None => {
5861 pending_completion_container().child(Label::new("...").size(LabelSize::Small))
5862 }
5863 },
5864
5865 None => pending_completion_container().child(Label::new("No Prediction")),
5866 };
5867
5868 let completion = if is_refreshing {
5869 completion
5870 .with_animation(
5871 "loading-completion",
5872 Animation::new(Duration::from_secs(2))
5873 .repeat()
5874 .with_easing(pulsating_between(0.4, 0.8)),
5875 |label, delta| label.opacity(delta),
5876 )
5877 .into_any_element()
5878 } else {
5879 completion.into_any_element()
5880 };
5881
5882 let has_completion = self.active_inline_completion.is_some();
5883
5884 let is_platform_style_mac = PlatformStyle::platform() == PlatformStyle::Mac;
5885 Some(
5886 h_flex()
5887 .min_w(min_width)
5888 .max_w(max_width)
5889 .flex_1()
5890 .elevation_2(cx)
5891 .border_color(cx.theme().colors().border)
5892 .child(
5893 div()
5894 .flex_1()
5895 .py_1()
5896 .px_2()
5897 .overflow_hidden()
5898 .child(completion),
5899 )
5900 .child(
5901 h_flex()
5902 .h_full()
5903 .border_l_1()
5904 .rounded_r_lg()
5905 .border_color(cx.theme().colors().border)
5906 .bg(Self::edit_prediction_line_popover_bg_color(cx))
5907 .gap_1()
5908 .py_1()
5909 .px_2()
5910 .child(
5911 h_flex()
5912 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
5913 .when(is_platform_style_mac, |parent| parent.gap_1())
5914 .child(h_flex().children(ui::render_modifiers(
5915 &accept_keystroke.modifiers,
5916 PlatformStyle::platform(),
5917 Some(if !has_completion {
5918 Color::Muted
5919 } else {
5920 Color::Default
5921 }),
5922 None,
5923 false,
5924 ))),
5925 )
5926 .child(Label::new("Preview").into_any_element())
5927 .opacity(if has_completion { 1.0 } else { 0.4 }),
5928 )
5929 .into_any(),
5930 )
5931 }
5932
5933 fn render_edit_prediction_cursor_popover_preview(
5934 &self,
5935 completion: &InlineCompletionState,
5936 cursor_point: Point,
5937 style: &EditorStyle,
5938 cx: &mut Context<Editor>,
5939 ) -> Option<Div> {
5940 use text::ToPoint as _;
5941
5942 fn render_relative_row_jump(
5943 prefix: impl Into<String>,
5944 current_row: u32,
5945 target_row: u32,
5946 ) -> Div {
5947 let (row_diff, arrow) = if target_row < current_row {
5948 (current_row - target_row, IconName::ArrowUp)
5949 } else {
5950 (target_row - current_row, IconName::ArrowDown)
5951 };
5952
5953 h_flex()
5954 .child(
5955 Label::new(format!("{}{}", prefix.into(), row_diff))
5956 .color(Color::Muted)
5957 .size(LabelSize::Small),
5958 )
5959 .child(Icon::new(arrow).color(Color::Muted).size(IconSize::Small))
5960 }
5961
5962 match &completion.completion {
5963 InlineCompletion::Move {
5964 target, snapshot, ..
5965 } => Some(
5966 h_flex()
5967 .px_2()
5968 .gap_2()
5969 .flex_1()
5970 .child(
5971 if target.text_anchor.to_point(&snapshot).row > cursor_point.row {
5972 Icon::new(IconName::ZedPredictDown)
5973 } else {
5974 Icon::new(IconName::ZedPredictUp)
5975 },
5976 )
5977 .child(Label::new("Jump to Edit")),
5978 ),
5979
5980 InlineCompletion::Edit {
5981 edits,
5982 edit_preview,
5983 snapshot,
5984 display_mode: _,
5985 } => {
5986 let first_edit_row = edits.first()?.0.start.text_anchor.to_point(&snapshot).row;
5987
5988 let (highlighted_edits, has_more_lines) = crate::inline_completion_edit_text(
5989 &snapshot,
5990 &edits,
5991 edit_preview.as_ref()?,
5992 true,
5993 cx,
5994 )
5995 .first_line_preview();
5996
5997 let styled_text = gpui::StyledText::new(highlighted_edits.text)
5998 .with_highlights(&style.text, highlighted_edits.highlights);
5999
6000 let preview = h_flex()
6001 .gap_1()
6002 .min_w_16()
6003 .child(styled_text)
6004 .when(has_more_lines, |parent| parent.child("…"));
6005
6006 let left = if first_edit_row != cursor_point.row {
6007 render_relative_row_jump("", cursor_point.row, first_edit_row)
6008 .into_any_element()
6009 } else {
6010 Icon::new(IconName::ZedPredict).into_any_element()
6011 };
6012
6013 Some(
6014 h_flex()
6015 .h_full()
6016 .flex_1()
6017 .gap_2()
6018 .pr_1()
6019 .overflow_x_hidden()
6020 .font(theme::ThemeSettings::get_global(cx).buffer_font.clone())
6021 .child(left)
6022 .child(preview),
6023 )
6024 }
6025 }
6026 }
6027
6028 fn render_context_menu(
6029 &self,
6030 style: &EditorStyle,
6031 max_height_in_lines: u32,
6032 y_flipped: bool,
6033 window: &mut Window,
6034 cx: &mut Context<Editor>,
6035 ) -> Option<AnyElement> {
6036 let menu = self.context_menu.borrow();
6037 let menu = menu.as_ref()?;
6038 if !menu.visible() {
6039 return None;
6040 };
6041 Some(menu.render(style, max_height_in_lines, y_flipped, window, cx))
6042 }
6043
6044 fn render_context_menu_aside(
6045 &self,
6046 style: &EditorStyle,
6047 max_size: Size<Pixels>,
6048 cx: &mut Context<Editor>,
6049 ) -> Option<AnyElement> {
6050 self.context_menu.borrow().as_ref().and_then(|menu| {
6051 if menu.visible() {
6052 menu.render_aside(
6053 style,
6054 max_size,
6055 self.workspace.as_ref().map(|(w, _)| w.clone()),
6056 cx,
6057 )
6058 } else {
6059 None
6060 }
6061 })
6062 }
6063
6064 fn hide_context_menu(
6065 &mut self,
6066 window: &mut Window,
6067 cx: &mut Context<Self>,
6068 ) -> Option<CodeContextMenu> {
6069 cx.notify();
6070 self.completion_tasks.clear();
6071 let context_menu = self.context_menu.borrow_mut().take();
6072 self.stale_inline_completion_in_menu.take();
6073 self.update_visible_inline_completion(window, cx);
6074 context_menu
6075 }
6076
6077 fn show_snippet_choices(
6078 &mut self,
6079 choices: &Vec<String>,
6080 selection: Range<Anchor>,
6081 cx: &mut Context<Self>,
6082 ) {
6083 if selection.start.buffer_id.is_none() {
6084 return;
6085 }
6086 let buffer_id = selection.start.buffer_id.unwrap();
6087 let buffer = self.buffer().read(cx).buffer(buffer_id);
6088 let id = post_inc(&mut self.next_completion_id);
6089
6090 if let Some(buffer) = buffer {
6091 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
6092 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
6093 ));
6094 }
6095 }
6096
6097 pub fn insert_snippet(
6098 &mut self,
6099 insertion_ranges: &[Range<usize>],
6100 snippet: Snippet,
6101 window: &mut Window,
6102 cx: &mut Context<Self>,
6103 ) -> Result<()> {
6104 struct Tabstop<T> {
6105 is_end_tabstop: bool,
6106 ranges: Vec<Range<T>>,
6107 choices: Option<Vec<String>>,
6108 }
6109
6110 let tabstops = self.buffer.update(cx, |buffer, cx| {
6111 let snippet_text: Arc<str> = snippet.text.clone().into();
6112 buffer.edit(
6113 insertion_ranges
6114 .iter()
6115 .cloned()
6116 .map(|range| (range, snippet_text.clone())),
6117 Some(AutoindentMode::EachLine),
6118 cx,
6119 );
6120
6121 let snapshot = &*buffer.read(cx);
6122 let snippet = &snippet;
6123 snippet
6124 .tabstops
6125 .iter()
6126 .map(|tabstop| {
6127 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
6128 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
6129 });
6130 let mut tabstop_ranges = tabstop
6131 .ranges
6132 .iter()
6133 .flat_map(|tabstop_range| {
6134 let mut delta = 0_isize;
6135 insertion_ranges.iter().map(move |insertion_range| {
6136 let insertion_start = insertion_range.start as isize + delta;
6137 delta +=
6138 snippet.text.len() as isize - insertion_range.len() as isize;
6139
6140 let start = ((insertion_start + tabstop_range.start) as usize)
6141 .min(snapshot.len());
6142 let end = ((insertion_start + tabstop_range.end) as usize)
6143 .min(snapshot.len());
6144 snapshot.anchor_before(start)..snapshot.anchor_after(end)
6145 })
6146 })
6147 .collect::<Vec<_>>();
6148 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
6149
6150 Tabstop {
6151 is_end_tabstop,
6152 ranges: tabstop_ranges,
6153 choices: tabstop.choices.clone(),
6154 }
6155 })
6156 .collect::<Vec<_>>()
6157 });
6158 if let Some(tabstop) = tabstops.first() {
6159 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6160 s.select_ranges(tabstop.ranges.iter().cloned());
6161 });
6162
6163 if let Some(choices) = &tabstop.choices {
6164 if let Some(selection) = tabstop.ranges.first() {
6165 self.show_snippet_choices(choices, selection.clone(), cx)
6166 }
6167 }
6168
6169 // If we're already at the last tabstop and it's at the end of the snippet,
6170 // we're done, we don't need to keep the state around.
6171 if !tabstop.is_end_tabstop {
6172 let choices = tabstops
6173 .iter()
6174 .map(|tabstop| tabstop.choices.clone())
6175 .collect();
6176
6177 let ranges = tabstops
6178 .into_iter()
6179 .map(|tabstop| tabstop.ranges)
6180 .collect::<Vec<_>>();
6181
6182 self.snippet_stack.push(SnippetState {
6183 active_index: 0,
6184 ranges,
6185 choices,
6186 });
6187 }
6188
6189 // Check whether the just-entered snippet ends with an auto-closable bracket.
6190 if self.autoclose_regions.is_empty() {
6191 let snapshot = self.buffer.read(cx).snapshot(cx);
6192 for selection in &mut self.selections.all::<Point>(cx) {
6193 let selection_head = selection.head();
6194 let Some(scope) = snapshot.language_scope_at(selection_head) else {
6195 continue;
6196 };
6197
6198 let mut bracket_pair = None;
6199 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
6200 let prev_chars = snapshot
6201 .reversed_chars_at(selection_head)
6202 .collect::<String>();
6203 for (pair, enabled) in scope.brackets() {
6204 if enabled
6205 && pair.close
6206 && prev_chars.starts_with(pair.start.as_str())
6207 && next_chars.starts_with(pair.end.as_str())
6208 {
6209 bracket_pair = Some(pair.clone());
6210 break;
6211 }
6212 }
6213 if let Some(pair) = bracket_pair {
6214 let start = snapshot.anchor_after(selection_head);
6215 let end = snapshot.anchor_after(selection_head);
6216 self.autoclose_regions.push(AutocloseRegion {
6217 selection_id: selection.id,
6218 range: start..end,
6219 pair,
6220 });
6221 }
6222 }
6223 }
6224 }
6225 Ok(())
6226 }
6227
6228 pub fn move_to_next_snippet_tabstop(
6229 &mut self,
6230 window: &mut Window,
6231 cx: &mut Context<Self>,
6232 ) -> bool {
6233 self.move_to_snippet_tabstop(Bias::Right, window, cx)
6234 }
6235
6236 pub fn move_to_prev_snippet_tabstop(
6237 &mut self,
6238 window: &mut Window,
6239 cx: &mut Context<Self>,
6240 ) -> bool {
6241 self.move_to_snippet_tabstop(Bias::Left, window, cx)
6242 }
6243
6244 pub fn move_to_snippet_tabstop(
6245 &mut self,
6246 bias: Bias,
6247 window: &mut Window,
6248 cx: &mut Context<Self>,
6249 ) -> bool {
6250 if let Some(mut snippet) = self.snippet_stack.pop() {
6251 match bias {
6252 Bias::Left => {
6253 if snippet.active_index > 0 {
6254 snippet.active_index -= 1;
6255 } else {
6256 self.snippet_stack.push(snippet);
6257 return false;
6258 }
6259 }
6260 Bias::Right => {
6261 if snippet.active_index + 1 < snippet.ranges.len() {
6262 snippet.active_index += 1;
6263 } else {
6264 self.snippet_stack.push(snippet);
6265 return false;
6266 }
6267 }
6268 }
6269 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
6270 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6271 s.select_anchor_ranges(current_ranges.iter().cloned())
6272 });
6273
6274 if let Some(choices) = &snippet.choices[snippet.active_index] {
6275 if let Some(selection) = current_ranges.first() {
6276 self.show_snippet_choices(&choices, selection.clone(), cx);
6277 }
6278 }
6279
6280 // If snippet state is not at the last tabstop, push it back on the stack
6281 if snippet.active_index + 1 < snippet.ranges.len() {
6282 self.snippet_stack.push(snippet);
6283 }
6284 return true;
6285 }
6286 }
6287
6288 false
6289 }
6290
6291 pub fn clear(&mut self, window: &mut Window, cx: &mut Context<Self>) {
6292 self.transact(window, cx, |this, window, cx| {
6293 this.select_all(&SelectAll, window, cx);
6294 this.insert("", window, cx);
6295 });
6296 }
6297
6298 pub fn backspace(&mut self, _: &Backspace, window: &mut Window, cx: &mut Context<Self>) {
6299 self.transact(window, cx, |this, window, cx| {
6300 this.select_autoclose_pair(window, cx);
6301 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
6302 if !this.linked_edit_ranges.is_empty() {
6303 let selections = this.selections.all::<MultiBufferPoint>(cx);
6304 let snapshot = this.buffer.read(cx).snapshot(cx);
6305
6306 for selection in selections.iter() {
6307 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
6308 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
6309 if selection_start.buffer_id != selection_end.buffer_id {
6310 continue;
6311 }
6312 if let Some(ranges) =
6313 this.linked_editing_ranges_for(selection_start..selection_end, cx)
6314 {
6315 for (buffer, entries) in ranges {
6316 linked_ranges.entry(buffer).or_default().extend(entries);
6317 }
6318 }
6319 }
6320 }
6321
6322 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
6323 if !this.selections.line_mode {
6324 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
6325 for selection in &mut selections {
6326 if selection.is_empty() {
6327 let old_head = selection.head();
6328 let mut new_head =
6329 movement::left(&display_map, old_head.to_display_point(&display_map))
6330 .to_point(&display_map);
6331 if let Some((buffer, line_buffer_range)) = display_map
6332 .buffer_snapshot
6333 .buffer_line_for_row(MultiBufferRow(old_head.row))
6334 {
6335 let indent_size =
6336 buffer.indent_size_for_line(line_buffer_range.start.row);
6337 let indent_len = match indent_size.kind {
6338 IndentKind::Space => {
6339 buffer.settings_at(line_buffer_range.start, cx).tab_size
6340 }
6341 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
6342 };
6343 if old_head.column <= indent_size.len && old_head.column > 0 {
6344 let indent_len = indent_len.get();
6345 new_head = cmp::min(
6346 new_head,
6347 MultiBufferPoint::new(
6348 old_head.row,
6349 ((old_head.column - 1) / indent_len) * indent_len,
6350 ),
6351 );
6352 }
6353 }
6354
6355 selection.set_head(new_head, SelectionGoal::None);
6356 }
6357 }
6358 }
6359
6360 this.signature_help_state.set_backspace_pressed(true);
6361 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6362 s.select(selections)
6363 });
6364 this.insert("", window, cx);
6365 let empty_str: Arc<str> = Arc::from("");
6366 for (buffer, edits) in linked_ranges {
6367 let snapshot = buffer.read(cx).snapshot();
6368 use text::ToPoint as TP;
6369
6370 let edits = edits
6371 .into_iter()
6372 .map(|range| {
6373 let end_point = TP::to_point(&range.end, &snapshot);
6374 let mut start_point = TP::to_point(&range.start, &snapshot);
6375
6376 if end_point == start_point {
6377 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6378 .saturating_sub(1);
6379 start_point =
6380 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
6381 };
6382
6383 (start_point..end_point, empty_str.clone())
6384 })
6385 .sorted_by_key(|(range, _)| range.start)
6386 .collect::<Vec<_>>();
6387 buffer.update(cx, |this, cx| {
6388 this.edit(edits, None, cx);
6389 })
6390 }
6391 this.refresh_inline_completion(true, false, window, cx);
6392 linked_editing_ranges::refresh_linked_ranges(this, window, cx);
6393 });
6394 }
6395
6396 pub fn delete(&mut self, _: &Delete, window: &mut Window, cx: &mut Context<Self>) {
6397 self.transact(window, cx, |this, window, cx| {
6398 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6399 let line_mode = s.line_mode;
6400 s.move_with(|map, selection| {
6401 if selection.is_empty() && !line_mode {
6402 let cursor = movement::right(map, selection.head());
6403 selection.end = cursor;
6404 selection.reversed = true;
6405 selection.goal = SelectionGoal::None;
6406 }
6407 })
6408 });
6409 this.insert("", window, cx);
6410 this.refresh_inline_completion(true, false, window, cx);
6411 });
6412 }
6413
6414 pub fn tab_prev(&mut self, _: &TabPrev, window: &mut Window, cx: &mut Context<Self>) {
6415 if self.move_to_prev_snippet_tabstop(window, cx) {
6416 return;
6417 }
6418
6419 self.outdent(&Outdent, window, cx);
6420 }
6421
6422 pub fn tab(&mut self, _: &Tab, window: &mut Window, cx: &mut Context<Self>) {
6423 if self.move_to_next_snippet_tabstop(window, cx) || self.read_only(cx) {
6424 return;
6425 }
6426
6427 let mut selections = self.selections.all_adjusted(cx);
6428 let buffer = self.buffer.read(cx);
6429 let snapshot = buffer.snapshot(cx);
6430 let rows_iter = selections.iter().map(|s| s.head().row);
6431 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6432
6433 let mut edits = Vec::new();
6434 let mut prev_edited_row = 0;
6435 let mut row_delta = 0;
6436 for selection in &mut selections {
6437 if selection.start.row != prev_edited_row {
6438 row_delta = 0;
6439 }
6440 prev_edited_row = selection.end.row;
6441
6442 // If the selection is non-empty, then increase the indentation of the selected lines.
6443 if !selection.is_empty() {
6444 row_delta =
6445 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6446 continue;
6447 }
6448
6449 // If the selection is empty and the cursor is in the leading whitespace before the
6450 // suggested indentation, then auto-indent the line.
6451 let cursor = selection.head();
6452 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6453 if let Some(suggested_indent) =
6454 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6455 {
6456 if cursor.column < suggested_indent.len
6457 && cursor.column <= current_indent.len
6458 && current_indent.len <= suggested_indent.len
6459 {
6460 selection.start = Point::new(cursor.row, suggested_indent.len);
6461 selection.end = selection.start;
6462 if row_delta == 0 {
6463 edits.extend(Buffer::edit_for_indent_size_adjustment(
6464 cursor.row,
6465 current_indent,
6466 suggested_indent,
6467 ));
6468 row_delta = suggested_indent.len - current_indent.len;
6469 }
6470 continue;
6471 }
6472 }
6473
6474 // Otherwise, insert a hard or soft tab.
6475 let settings = buffer.settings_at(cursor, cx);
6476 let tab_size = if settings.hard_tabs {
6477 IndentSize::tab()
6478 } else {
6479 let tab_size = settings.tab_size.get();
6480 let char_column = snapshot
6481 .text_for_range(Point::new(cursor.row, 0)..cursor)
6482 .flat_map(str::chars)
6483 .count()
6484 + row_delta as usize;
6485 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6486 IndentSize::spaces(chars_to_next_tab_stop)
6487 };
6488 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6489 selection.end = selection.start;
6490 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6491 row_delta += tab_size.len;
6492 }
6493
6494 self.transact(window, cx, |this, window, cx| {
6495 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6496 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6497 s.select(selections)
6498 });
6499 this.refresh_inline_completion(true, false, window, cx);
6500 });
6501 }
6502
6503 pub fn indent(&mut self, _: &Indent, window: &mut Window, cx: &mut Context<Self>) {
6504 if self.read_only(cx) {
6505 return;
6506 }
6507 let mut selections = self.selections.all::<Point>(cx);
6508 let mut prev_edited_row = 0;
6509 let mut row_delta = 0;
6510 let mut edits = Vec::new();
6511 let buffer = self.buffer.read(cx);
6512 let snapshot = buffer.snapshot(cx);
6513 for selection in &mut selections {
6514 if selection.start.row != prev_edited_row {
6515 row_delta = 0;
6516 }
6517 prev_edited_row = selection.end.row;
6518
6519 row_delta =
6520 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6521 }
6522
6523 self.transact(window, cx, |this, window, cx| {
6524 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6525 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6526 s.select(selections)
6527 });
6528 });
6529 }
6530
6531 fn indent_selection(
6532 buffer: &MultiBuffer,
6533 snapshot: &MultiBufferSnapshot,
6534 selection: &mut Selection<Point>,
6535 edits: &mut Vec<(Range<Point>, String)>,
6536 delta_for_start_row: u32,
6537 cx: &App,
6538 ) -> u32 {
6539 let settings = buffer.settings_at(selection.start, cx);
6540 let tab_size = settings.tab_size.get();
6541 let indent_kind = if settings.hard_tabs {
6542 IndentKind::Tab
6543 } else {
6544 IndentKind::Space
6545 };
6546 let mut start_row = selection.start.row;
6547 let mut end_row = selection.end.row + 1;
6548
6549 // If a selection ends at the beginning of a line, don't indent
6550 // that last line.
6551 if selection.end.column == 0 && selection.end.row > selection.start.row {
6552 end_row -= 1;
6553 }
6554
6555 // Avoid re-indenting a row that has already been indented by a
6556 // previous selection, but still update this selection's column
6557 // to reflect that indentation.
6558 if delta_for_start_row > 0 {
6559 start_row += 1;
6560 selection.start.column += delta_for_start_row;
6561 if selection.end.row == selection.start.row {
6562 selection.end.column += delta_for_start_row;
6563 }
6564 }
6565
6566 let mut delta_for_end_row = 0;
6567 let has_multiple_rows = start_row + 1 != end_row;
6568 for row in start_row..end_row {
6569 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6570 let indent_delta = match (current_indent.kind, indent_kind) {
6571 (IndentKind::Space, IndentKind::Space) => {
6572 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6573 IndentSize::spaces(columns_to_next_tab_stop)
6574 }
6575 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6576 (_, IndentKind::Tab) => IndentSize::tab(),
6577 };
6578
6579 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6580 0
6581 } else {
6582 selection.start.column
6583 };
6584 let row_start = Point::new(row, start);
6585 edits.push((
6586 row_start..row_start,
6587 indent_delta.chars().collect::<String>(),
6588 ));
6589
6590 // Update this selection's endpoints to reflect the indentation.
6591 if row == selection.start.row {
6592 selection.start.column += indent_delta.len;
6593 }
6594 if row == selection.end.row {
6595 selection.end.column += indent_delta.len;
6596 delta_for_end_row = indent_delta.len;
6597 }
6598 }
6599
6600 if selection.start.row == selection.end.row {
6601 delta_for_start_row + delta_for_end_row
6602 } else {
6603 delta_for_end_row
6604 }
6605 }
6606
6607 pub fn outdent(&mut self, _: &Outdent, window: &mut Window, cx: &mut Context<Self>) {
6608 if self.read_only(cx) {
6609 return;
6610 }
6611 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6612 let selections = self.selections.all::<Point>(cx);
6613 let mut deletion_ranges = Vec::new();
6614 let mut last_outdent = None;
6615 {
6616 let buffer = self.buffer.read(cx);
6617 let snapshot = buffer.snapshot(cx);
6618 for selection in &selections {
6619 let settings = buffer.settings_at(selection.start, cx);
6620 let tab_size = settings.tab_size.get();
6621 let mut rows = selection.spanned_rows(false, &display_map);
6622
6623 // Avoid re-outdenting a row that has already been outdented by a
6624 // previous selection.
6625 if let Some(last_row) = last_outdent {
6626 if last_row == rows.start {
6627 rows.start = rows.start.next_row();
6628 }
6629 }
6630 let has_multiple_rows = rows.len() > 1;
6631 for row in rows.iter_rows() {
6632 let indent_size = snapshot.indent_size_for_line(row);
6633 if indent_size.len > 0 {
6634 let deletion_len = match indent_size.kind {
6635 IndentKind::Space => {
6636 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6637 if columns_to_prev_tab_stop == 0 {
6638 tab_size
6639 } else {
6640 columns_to_prev_tab_stop
6641 }
6642 }
6643 IndentKind::Tab => 1,
6644 };
6645 let start = if has_multiple_rows
6646 || deletion_len > selection.start.column
6647 || indent_size.len < selection.start.column
6648 {
6649 0
6650 } else {
6651 selection.start.column - deletion_len
6652 };
6653 deletion_ranges.push(
6654 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6655 );
6656 last_outdent = Some(row);
6657 }
6658 }
6659 }
6660 }
6661
6662 self.transact(window, cx, |this, window, cx| {
6663 this.buffer.update(cx, |buffer, cx| {
6664 let empty_str: Arc<str> = Arc::default();
6665 buffer.edit(
6666 deletion_ranges
6667 .into_iter()
6668 .map(|range| (range, empty_str.clone())),
6669 None,
6670 cx,
6671 );
6672 });
6673 let selections = this.selections.all::<usize>(cx);
6674 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6675 s.select(selections)
6676 });
6677 });
6678 }
6679
6680 pub fn autoindent(&mut self, _: &AutoIndent, window: &mut Window, cx: &mut Context<Self>) {
6681 if self.read_only(cx) {
6682 return;
6683 }
6684 let selections = self
6685 .selections
6686 .all::<usize>(cx)
6687 .into_iter()
6688 .map(|s| s.range());
6689
6690 self.transact(window, cx, |this, window, cx| {
6691 this.buffer.update(cx, |buffer, cx| {
6692 buffer.autoindent_ranges(selections, cx);
6693 });
6694 let selections = this.selections.all::<usize>(cx);
6695 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6696 s.select(selections)
6697 });
6698 });
6699 }
6700
6701 pub fn delete_line(&mut self, _: &DeleteLine, window: &mut Window, cx: &mut Context<Self>) {
6702 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6703 let selections = self.selections.all::<Point>(cx);
6704
6705 let mut new_cursors = Vec::new();
6706 let mut edit_ranges = Vec::new();
6707 let mut selections = selections.iter().peekable();
6708 while let Some(selection) = selections.next() {
6709 let mut rows = selection.spanned_rows(false, &display_map);
6710 let goal_display_column = selection.head().to_display_point(&display_map).column();
6711
6712 // Accumulate contiguous regions of rows that we want to delete.
6713 while let Some(next_selection) = selections.peek() {
6714 let next_rows = next_selection.spanned_rows(false, &display_map);
6715 if next_rows.start <= rows.end {
6716 rows.end = next_rows.end;
6717 selections.next().unwrap();
6718 } else {
6719 break;
6720 }
6721 }
6722
6723 let buffer = &display_map.buffer_snapshot;
6724 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6725 let edit_end;
6726 let cursor_buffer_row;
6727 if buffer.max_point().row >= rows.end.0 {
6728 // If there's a line after the range, delete the \n from the end of the row range
6729 // and position the cursor on the next line.
6730 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6731 cursor_buffer_row = rows.end;
6732 } else {
6733 // If there isn't a line after the range, delete the \n from the line before the
6734 // start of the row range and position the cursor there.
6735 edit_start = edit_start.saturating_sub(1);
6736 edit_end = buffer.len();
6737 cursor_buffer_row = rows.start.previous_row();
6738 }
6739
6740 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6741 *cursor.column_mut() =
6742 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6743
6744 new_cursors.push((
6745 selection.id,
6746 buffer.anchor_after(cursor.to_point(&display_map)),
6747 ));
6748 edit_ranges.push(edit_start..edit_end);
6749 }
6750
6751 self.transact(window, cx, |this, window, cx| {
6752 let buffer = this.buffer.update(cx, |buffer, cx| {
6753 let empty_str: Arc<str> = Arc::default();
6754 buffer.edit(
6755 edit_ranges
6756 .into_iter()
6757 .map(|range| (range, empty_str.clone())),
6758 None,
6759 cx,
6760 );
6761 buffer.snapshot(cx)
6762 });
6763 let new_selections = new_cursors
6764 .into_iter()
6765 .map(|(id, cursor)| {
6766 let cursor = cursor.to_point(&buffer);
6767 Selection {
6768 id,
6769 start: cursor,
6770 end: cursor,
6771 reversed: false,
6772 goal: SelectionGoal::None,
6773 }
6774 })
6775 .collect();
6776
6777 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6778 s.select(new_selections);
6779 });
6780 });
6781 }
6782
6783 pub fn join_lines_impl(
6784 &mut self,
6785 insert_whitespace: bool,
6786 window: &mut Window,
6787 cx: &mut Context<Self>,
6788 ) {
6789 if self.read_only(cx) {
6790 return;
6791 }
6792 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6793 for selection in self.selections.all::<Point>(cx) {
6794 let start = MultiBufferRow(selection.start.row);
6795 // Treat single line selections as if they include the next line. Otherwise this action
6796 // would do nothing for single line selections individual cursors.
6797 let end = if selection.start.row == selection.end.row {
6798 MultiBufferRow(selection.start.row + 1)
6799 } else {
6800 MultiBufferRow(selection.end.row)
6801 };
6802
6803 if let Some(last_row_range) = row_ranges.last_mut() {
6804 if start <= last_row_range.end {
6805 last_row_range.end = end;
6806 continue;
6807 }
6808 }
6809 row_ranges.push(start..end);
6810 }
6811
6812 let snapshot = self.buffer.read(cx).snapshot(cx);
6813 let mut cursor_positions = Vec::new();
6814 for row_range in &row_ranges {
6815 let anchor = snapshot.anchor_before(Point::new(
6816 row_range.end.previous_row().0,
6817 snapshot.line_len(row_range.end.previous_row()),
6818 ));
6819 cursor_positions.push(anchor..anchor);
6820 }
6821
6822 self.transact(window, cx, |this, window, cx| {
6823 for row_range in row_ranges.into_iter().rev() {
6824 for row in row_range.iter_rows().rev() {
6825 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6826 let next_line_row = row.next_row();
6827 let indent = snapshot.indent_size_for_line(next_line_row);
6828 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6829
6830 let replace =
6831 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
6832 " "
6833 } else {
6834 ""
6835 };
6836
6837 this.buffer.update(cx, |buffer, cx| {
6838 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6839 });
6840 }
6841 }
6842
6843 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
6844 s.select_anchor_ranges(cursor_positions)
6845 });
6846 });
6847 }
6848
6849 pub fn join_lines(&mut self, _: &JoinLines, window: &mut Window, cx: &mut Context<Self>) {
6850 self.join_lines_impl(true, window, cx);
6851 }
6852
6853 pub fn sort_lines_case_sensitive(
6854 &mut self,
6855 _: &SortLinesCaseSensitive,
6856 window: &mut Window,
6857 cx: &mut Context<Self>,
6858 ) {
6859 self.manipulate_lines(window, cx, |lines| lines.sort())
6860 }
6861
6862 pub fn sort_lines_case_insensitive(
6863 &mut self,
6864 _: &SortLinesCaseInsensitive,
6865 window: &mut Window,
6866 cx: &mut Context<Self>,
6867 ) {
6868 self.manipulate_lines(window, cx, |lines| {
6869 lines.sort_by_key(|line| line.to_lowercase())
6870 })
6871 }
6872
6873 pub fn unique_lines_case_insensitive(
6874 &mut self,
6875 _: &UniqueLinesCaseInsensitive,
6876 window: &mut Window,
6877 cx: &mut Context<Self>,
6878 ) {
6879 self.manipulate_lines(window, cx, |lines| {
6880 let mut seen = HashSet::default();
6881 lines.retain(|line| seen.insert(line.to_lowercase()));
6882 })
6883 }
6884
6885 pub fn unique_lines_case_sensitive(
6886 &mut self,
6887 _: &UniqueLinesCaseSensitive,
6888 window: &mut Window,
6889 cx: &mut Context<Self>,
6890 ) {
6891 self.manipulate_lines(window, cx, |lines| {
6892 let mut seen = HashSet::default();
6893 lines.retain(|line| seen.insert(*line));
6894 })
6895 }
6896
6897 pub fn revert_file(&mut self, _: &RevertFile, window: &mut Window, cx: &mut Context<Self>) {
6898 let mut revert_changes = HashMap::default();
6899 let snapshot = self.snapshot(window, cx);
6900 for hunk in snapshot
6901 .hunks_for_ranges(Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter())
6902 {
6903 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6904 }
6905 if !revert_changes.is_empty() {
6906 self.transact(window, cx, |editor, window, cx| {
6907 editor.revert(revert_changes, window, cx);
6908 });
6909 }
6910 }
6911
6912 pub fn reload_file(&mut self, _: &ReloadFile, window: &mut Window, cx: &mut Context<Self>) {
6913 let Some(project) = self.project.clone() else {
6914 return;
6915 };
6916 self.reload(project, window, cx)
6917 .detach_and_notify_err(window, cx);
6918 }
6919
6920 pub fn revert_selected_hunks(
6921 &mut self,
6922 _: &RevertSelectedHunks,
6923 window: &mut Window,
6924 cx: &mut Context<Self>,
6925 ) {
6926 let selections = self.selections.all(cx).into_iter().map(|s| s.range());
6927 self.revert_hunks_in_ranges(selections, window, cx);
6928 }
6929
6930 fn revert_hunks_in_ranges(
6931 &mut self,
6932 ranges: impl Iterator<Item = Range<Point>>,
6933 window: &mut Window,
6934 cx: &mut Context<Editor>,
6935 ) {
6936 let mut revert_changes = HashMap::default();
6937 let snapshot = self.snapshot(window, cx);
6938 for hunk in &snapshot.hunks_for_ranges(ranges) {
6939 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6940 }
6941 if !revert_changes.is_empty() {
6942 self.transact(window, cx, |editor, window, cx| {
6943 editor.revert(revert_changes, window, cx);
6944 });
6945 }
6946 }
6947
6948 pub fn open_active_item_in_terminal(
6949 &mut self,
6950 _: &OpenInTerminal,
6951 window: &mut Window,
6952 cx: &mut Context<Self>,
6953 ) {
6954 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6955 let project_path = buffer.read(cx).project_path(cx)?;
6956 let project = self.project.as_ref()?.read(cx);
6957 let entry = project.entry_for_path(&project_path, cx)?;
6958 let parent = match &entry.canonical_path {
6959 Some(canonical_path) => canonical_path.to_path_buf(),
6960 None => project.absolute_path(&project_path, cx)?,
6961 }
6962 .parent()?
6963 .to_path_buf();
6964 Some(parent)
6965 }) {
6966 window.dispatch_action(OpenTerminal { working_directory }.boxed_clone(), cx);
6967 }
6968 }
6969
6970 pub fn prepare_revert_change(
6971 &self,
6972 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6973 hunk: &MultiBufferDiffHunk,
6974 cx: &mut App,
6975 ) -> Option<()> {
6976 let buffer = self.buffer.read(cx);
6977 let diff = buffer.diff_for(hunk.buffer_id)?;
6978 let buffer = buffer.buffer(hunk.buffer_id)?;
6979 let buffer = buffer.read(cx);
6980 let original_text = diff
6981 .read(cx)
6982 .base_text()
6983 .as_ref()?
6984 .as_rope()
6985 .slice(hunk.diff_base_byte_range.clone());
6986 let buffer_snapshot = buffer.snapshot();
6987 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6988 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6989 probe
6990 .0
6991 .start
6992 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6993 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6994 }) {
6995 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6996 Some(())
6997 } else {
6998 None
6999 }
7000 }
7001
7002 pub fn reverse_lines(&mut self, _: &ReverseLines, window: &mut Window, cx: &mut Context<Self>) {
7003 self.manipulate_lines(window, cx, |lines| lines.reverse())
7004 }
7005
7006 pub fn shuffle_lines(&mut self, _: &ShuffleLines, window: &mut Window, cx: &mut Context<Self>) {
7007 self.manipulate_lines(window, cx, |lines| lines.shuffle(&mut thread_rng()))
7008 }
7009
7010 fn manipulate_lines<Fn>(
7011 &mut self,
7012 window: &mut Window,
7013 cx: &mut Context<Self>,
7014 mut callback: Fn,
7015 ) where
7016 Fn: FnMut(&mut Vec<&str>),
7017 {
7018 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7019 let buffer = self.buffer.read(cx).snapshot(cx);
7020
7021 let mut edits = Vec::new();
7022
7023 let selections = self.selections.all::<Point>(cx);
7024 let mut selections = selections.iter().peekable();
7025 let mut contiguous_row_selections = Vec::new();
7026 let mut new_selections = Vec::new();
7027 let mut added_lines = 0;
7028 let mut removed_lines = 0;
7029
7030 while let Some(selection) = selections.next() {
7031 let (start_row, end_row) = consume_contiguous_rows(
7032 &mut contiguous_row_selections,
7033 selection,
7034 &display_map,
7035 &mut selections,
7036 );
7037
7038 let start_point = Point::new(start_row.0, 0);
7039 let end_point = Point::new(
7040 end_row.previous_row().0,
7041 buffer.line_len(end_row.previous_row()),
7042 );
7043 let text = buffer
7044 .text_for_range(start_point..end_point)
7045 .collect::<String>();
7046
7047 let mut lines = text.split('\n').collect_vec();
7048
7049 let lines_before = lines.len();
7050 callback(&mut lines);
7051 let lines_after = lines.len();
7052
7053 edits.push((start_point..end_point, lines.join("\n")));
7054
7055 // Selections must change based on added and removed line count
7056 let start_row =
7057 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
7058 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
7059 new_selections.push(Selection {
7060 id: selection.id,
7061 start: start_row,
7062 end: end_row,
7063 goal: SelectionGoal::None,
7064 reversed: selection.reversed,
7065 });
7066
7067 if lines_after > lines_before {
7068 added_lines += lines_after - lines_before;
7069 } else if lines_before > lines_after {
7070 removed_lines += lines_before - lines_after;
7071 }
7072 }
7073
7074 self.transact(window, cx, |this, window, cx| {
7075 let buffer = this.buffer.update(cx, |buffer, cx| {
7076 buffer.edit(edits, None, cx);
7077 buffer.snapshot(cx)
7078 });
7079
7080 // Recalculate offsets on newly edited buffer
7081 let new_selections = new_selections
7082 .iter()
7083 .map(|s| {
7084 let start_point = Point::new(s.start.0, 0);
7085 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
7086 Selection {
7087 id: s.id,
7088 start: buffer.point_to_offset(start_point),
7089 end: buffer.point_to_offset(end_point),
7090 goal: s.goal,
7091 reversed: s.reversed,
7092 }
7093 })
7094 .collect();
7095
7096 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7097 s.select(new_selections);
7098 });
7099
7100 this.request_autoscroll(Autoscroll::fit(), cx);
7101 });
7102 }
7103
7104 pub fn convert_to_upper_case(
7105 &mut self,
7106 _: &ConvertToUpperCase,
7107 window: &mut Window,
7108 cx: &mut Context<Self>,
7109 ) {
7110 self.manipulate_text(window, cx, |text| text.to_uppercase())
7111 }
7112
7113 pub fn convert_to_lower_case(
7114 &mut self,
7115 _: &ConvertToLowerCase,
7116 window: &mut Window,
7117 cx: &mut Context<Self>,
7118 ) {
7119 self.manipulate_text(window, cx, |text| text.to_lowercase())
7120 }
7121
7122 pub fn convert_to_title_case(
7123 &mut self,
7124 _: &ConvertToTitleCase,
7125 window: &mut Window,
7126 cx: &mut Context<Self>,
7127 ) {
7128 self.manipulate_text(window, cx, |text| {
7129 text.split('\n')
7130 .map(|line| line.to_case(Case::Title))
7131 .join("\n")
7132 })
7133 }
7134
7135 pub fn convert_to_snake_case(
7136 &mut self,
7137 _: &ConvertToSnakeCase,
7138 window: &mut Window,
7139 cx: &mut Context<Self>,
7140 ) {
7141 self.manipulate_text(window, cx, |text| text.to_case(Case::Snake))
7142 }
7143
7144 pub fn convert_to_kebab_case(
7145 &mut self,
7146 _: &ConvertToKebabCase,
7147 window: &mut Window,
7148 cx: &mut Context<Self>,
7149 ) {
7150 self.manipulate_text(window, cx, |text| text.to_case(Case::Kebab))
7151 }
7152
7153 pub fn convert_to_upper_camel_case(
7154 &mut self,
7155 _: &ConvertToUpperCamelCase,
7156 window: &mut Window,
7157 cx: &mut Context<Self>,
7158 ) {
7159 self.manipulate_text(window, cx, |text| {
7160 text.split('\n')
7161 .map(|line| line.to_case(Case::UpperCamel))
7162 .join("\n")
7163 })
7164 }
7165
7166 pub fn convert_to_lower_camel_case(
7167 &mut self,
7168 _: &ConvertToLowerCamelCase,
7169 window: &mut Window,
7170 cx: &mut Context<Self>,
7171 ) {
7172 self.manipulate_text(window, cx, |text| text.to_case(Case::Camel))
7173 }
7174
7175 pub fn convert_to_opposite_case(
7176 &mut self,
7177 _: &ConvertToOppositeCase,
7178 window: &mut Window,
7179 cx: &mut Context<Self>,
7180 ) {
7181 self.manipulate_text(window, cx, |text| {
7182 text.chars()
7183 .fold(String::with_capacity(text.len()), |mut t, c| {
7184 if c.is_uppercase() {
7185 t.extend(c.to_lowercase());
7186 } else {
7187 t.extend(c.to_uppercase());
7188 }
7189 t
7190 })
7191 })
7192 }
7193
7194 fn manipulate_text<Fn>(&mut self, window: &mut Window, cx: &mut Context<Self>, mut callback: Fn)
7195 where
7196 Fn: FnMut(&str) -> String,
7197 {
7198 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7199 let buffer = self.buffer.read(cx).snapshot(cx);
7200
7201 let mut new_selections = Vec::new();
7202 let mut edits = Vec::new();
7203 let mut selection_adjustment = 0i32;
7204
7205 for selection in self.selections.all::<usize>(cx) {
7206 let selection_is_empty = selection.is_empty();
7207
7208 let (start, end) = if selection_is_empty {
7209 let word_range = movement::surrounding_word(
7210 &display_map,
7211 selection.start.to_display_point(&display_map),
7212 );
7213 let start = word_range.start.to_offset(&display_map, Bias::Left);
7214 let end = word_range.end.to_offset(&display_map, Bias::Left);
7215 (start, end)
7216 } else {
7217 (selection.start, selection.end)
7218 };
7219
7220 let text = buffer.text_for_range(start..end).collect::<String>();
7221 let old_length = text.len() as i32;
7222 let text = callback(&text);
7223
7224 new_selections.push(Selection {
7225 start: (start as i32 - selection_adjustment) as usize,
7226 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
7227 goal: SelectionGoal::None,
7228 ..selection
7229 });
7230
7231 selection_adjustment += old_length - text.len() as i32;
7232
7233 edits.push((start..end, text));
7234 }
7235
7236 self.transact(window, cx, |this, window, cx| {
7237 this.buffer.update(cx, |buffer, cx| {
7238 buffer.edit(edits, None, cx);
7239 });
7240
7241 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7242 s.select(new_selections);
7243 });
7244
7245 this.request_autoscroll(Autoscroll::fit(), cx);
7246 });
7247 }
7248
7249 pub fn duplicate(
7250 &mut self,
7251 upwards: bool,
7252 whole_lines: bool,
7253 window: &mut Window,
7254 cx: &mut Context<Self>,
7255 ) {
7256 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7257 let buffer = &display_map.buffer_snapshot;
7258 let selections = self.selections.all::<Point>(cx);
7259
7260 let mut edits = Vec::new();
7261 let mut selections_iter = selections.iter().peekable();
7262 while let Some(selection) = selections_iter.next() {
7263 let mut rows = selection.spanned_rows(false, &display_map);
7264 // duplicate line-wise
7265 if whole_lines || selection.start == selection.end {
7266 // Avoid duplicating the same lines twice.
7267 while let Some(next_selection) = selections_iter.peek() {
7268 let next_rows = next_selection.spanned_rows(false, &display_map);
7269 if next_rows.start < rows.end {
7270 rows.end = next_rows.end;
7271 selections_iter.next().unwrap();
7272 } else {
7273 break;
7274 }
7275 }
7276
7277 // Copy the text from the selected row region and splice it either at the start
7278 // or end of the region.
7279 let start = Point::new(rows.start.0, 0);
7280 let end = Point::new(
7281 rows.end.previous_row().0,
7282 buffer.line_len(rows.end.previous_row()),
7283 );
7284 let text = buffer
7285 .text_for_range(start..end)
7286 .chain(Some("\n"))
7287 .collect::<String>();
7288 let insert_location = if upwards {
7289 Point::new(rows.end.0, 0)
7290 } else {
7291 start
7292 };
7293 edits.push((insert_location..insert_location, text));
7294 } else {
7295 // duplicate character-wise
7296 let start = selection.start;
7297 let end = selection.end;
7298 let text = buffer.text_for_range(start..end).collect::<String>();
7299 edits.push((selection.end..selection.end, text));
7300 }
7301 }
7302
7303 self.transact(window, cx, |this, _, cx| {
7304 this.buffer.update(cx, |buffer, cx| {
7305 buffer.edit(edits, None, cx);
7306 });
7307
7308 this.request_autoscroll(Autoscroll::fit(), cx);
7309 });
7310 }
7311
7312 pub fn duplicate_line_up(
7313 &mut self,
7314 _: &DuplicateLineUp,
7315 window: &mut Window,
7316 cx: &mut Context<Self>,
7317 ) {
7318 self.duplicate(true, true, window, cx);
7319 }
7320
7321 pub fn duplicate_line_down(
7322 &mut self,
7323 _: &DuplicateLineDown,
7324 window: &mut Window,
7325 cx: &mut Context<Self>,
7326 ) {
7327 self.duplicate(false, true, window, cx);
7328 }
7329
7330 pub fn duplicate_selection(
7331 &mut self,
7332 _: &DuplicateSelection,
7333 window: &mut Window,
7334 cx: &mut Context<Self>,
7335 ) {
7336 self.duplicate(false, false, window, cx);
7337 }
7338
7339 pub fn move_line_up(&mut self, _: &MoveLineUp, window: &mut Window, cx: &mut Context<Self>) {
7340 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7341 let buffer = self.buffer.read(cx).snapshot(cx);
7342
7343 let mut edits = Vec::new();
7344 let mut unfold_ranges = Vec::new();
7345 let mut refold_creases = Vec::new();
7346
7347 let selections = self.selections.all::<Point>(cx);
7348 let mut selections = selections.iter().peekable();
7349 let mut contiguous_row_selections = Vec::new();
7350 let mut new_selections = Vec::new();
7351
7352 while let Some(selection) = selections.next() {
7353 // Find all the selections that span a contiguous row range
7354 let (start_row, end_row) = consume_contiguous_rows(
7355 &mut contiguous_row_selections,
7356 selection,
7357 &display_map,
7358 &mut selections,
7359 );
7360
7361 // Move the text spanned by the row range to be before the line preceding the row range
7362 if start_row.0 > 0 {
7363 let range_to_move = Point::new(
7364 start_row.previous_row().0,
7365 buffer.line_len(start_row.previous_row()),
7366 )
7367 ..Point::new(
7368 end_row.previous_row().0,
7369 buffer.line_len(end_row.previous_row()),
7370 );
7371 let insertion_point = display_map
7372 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
7373 .0;
7374
7375 // Don't move lines across excerpts
7376 if buffer
7377 .excerpt_containing(insertion_point..range_to_move.end)
7378 .is_some()
7379 {
7380 let text = buffer
7381 .text_for_range(range_to_move.clone())
7382 .flat_map(|s| s.chars())
7383 .skip(1)
7384 .chain(['\n'])
7385 .collect::<String>();
7386
7387 edits.push((
7388 buffer.anchor_after(range_to_move.start)
7389 ..buffer.anchor_before(range_to_move.end),
7390 String::new(),
7391 ));
7392 let insertion_anchor = buffer.anchor_after(insertion_point);
7393 edits.push((insertion_anchor..insertion_anchor, text));
7394
7395 let row_delta = range_to_move.start.row - insertion_point.row + 1;
7396
7397 // Move selections up
7398 new_selections.extend(contiguous_row_selections.drain(..).map(
7399 |mut selection| {
7400 selection.start.row -= row_delta;
7401 selection.end.row -= row_delta;
7402 selection
7403 },
7404 ));
7405
7406 // Move folds up
7407 unfold_ranges.push(range_to_move.clone());
7408 for fold in display_map.folds_in_range(
7409 buffer.anchor_before(range_to_move.start)
7410 ..buffer.anchor_after(range_to_move.end),
7411 ) {
7412 let mut start = fold.range.start.to_point(&buffer);
7413 let mut end = fold.range.end.to_point(&buffer);
7414 start.row -= row_delta;
7415 end.row -= row_delta;
7416 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7417 }
7418 }
7419 }
7420
7421 // If we didn't move line(s), preserve the existing selections
7422 new_selections.append(&mut contiguous_row_selections);
7423 }
7424
7425 self.transact(window, cx, |this, window, cx| {
7426 this.unfold_ranges(&unfold_ranges, true, true, cx);
7427 this.buffer.update(cx, |buffer, cx| {
7428 for (range, text) in edits {
7429 buffer.edit([(range, text)], None, cx);
7430 }
7431 });
7432 this.fold_creases(refold_creases, true, window, cx);
7433 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7434 s.select(new_selections);
7435 })
7436 });
7437 }
7438
7439 pub fn move_line_down(
7440 &mut self,
7441 _: &MoveLineDown,
7442 window: &mut Window,
7443 cx: &mut Context<Self>,
7444 ) {
7445 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7446 let buffer = self.buffer.read(cx).snapshot(cx);
7447
7448 let mut edits = Vec::new();
7449 let mut unfold_ranges = Vec::new();
7450 let mut refold_creases = Vec::new();
7451
7452 let selections = self.selections.all::<Point>(cx);
7453 let mut selections = selections.iter().peekable();
7454 let mut contiguous_row_selections = Vec::new();
7455 let mut new_selections = Vec::new();
7456
7457 while let Some(selection) = selections.next() {
7458 // Find all the selections that span a contiguous row range
7459 let (start_row, end_row) = consume_contiguous_rows(
7460 &mut contiguous_row_selections,
7461 selection,
7462 &display_map,
7463 &mut selections,
7464 );
7465
7466 // Move the text spanned by the row range to be after the last line of the row range
7467 if end_row.0 <= buffer.max_point().row {
7468 let range_to_move =
7469 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7470 let insertion_point = display_map
7471 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7472 .0;
7473
7474 // Don't move lines across excerpt boundaries
7475 if buffer
7476 .excerpt_containing(range_to_move.start..insertion_point)
7477 .is_some()
7478 {
7479 let mut text = String::from("\n");
7480 text.extend(buffer.text_for_range(range_to_move.clone()));
7481 text.pop(); // Drop trailing newline
7482 edits.push((
7483 buffer.anchor_after(range_to_move.start)
7484 ..buffer.anchor_before(range_to_move.end),
7485 String::new(),
7486 ));
7487 let insertion_anchor = buffer.anchor_after(insertion_point);
7488 edits.push((insertion_anchor..insertion_anchor, text));
7489
7490 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7491
7492 // Move selections down
7493 new_selections.extend(contiguous_row_selections.drain(..).map(
7494 |mut selection| {
7495 selection.start.row += row_delta;
7496 selection.end.row += row_delta;
7497 selection
7498 },
7499 ));
7500
7501 // Move folds down
7502 unfold_ranges.push(range_to_move.clone());
7503 for fold in display_map.folds_in_range(
7504 buffer.anchor_before(range_to_move.start)
7505 ..buffer.anchor_after(range_to_move.end),
7506 ) {
7507 let mut start = fold.range.start.to_point(&buffer);
7508 let mut end = fold.range.end.to_point(&buffer);
7509 start.row += row_delta;
7510 end.row += row_delta;
7511 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7512 }
7513 }
7514 }
7515
7516 // If we didn't move line(s), preserve the existing selections
7517 new_selections.append(&mut contiguous_row_selections);
7518 }
7519
7520 self.transact(window, cx, |this, window, cx| {
7521 this.unfold_ranges(&unfold_ranges, true, true, cx);
7522 this.buffer.update(cx, |buffer, cx| {
7523 for (range, text) in edits {
7524 buffer.edit([(range, text)], None, cx);
7525 }
7526 });
7527 this.fold_creases(refold_creases, true, window, cx);
7528 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7529 s.select(new_selections)
7530 });
7531 });
7532 }
7533
7534 pub fn transpose(&mut self, _: &Transpose, window: &mut Window, cx: &mut Context<Self>) {
7535 let text_layout_details = &self.text_layout_details(window);
7536 self.transact(window, cx, |this, window, cx| {
7537 let edits = this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7538 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7539 let line_mode = s.line_mode;
7540 s.move_with(|display_map, selection| {
7541 if !selection.is_empty() || line_mode {
7542 return;
7543 }
7544
7545 let mut head = selection.head();
7546 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7547 if head.column() == display_map.line_len(head.row()) {
7548 transpose_offset = display_map
7549 .buffer_snapshot
7550 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7551 }
7552
7553 if transpose_offset == 0 {
7554 return;
7555 }
7556
7557 *head.column_mut() += 1;
7558 head = display_map.clip_point(head, Bias::Right);
7559 let goal = SelectionGoal::HorizontalPosition(
7560 display_map
7561 .x_for_display_point(head, text_layout_details)
7562 .into(),
7563 );
7564 selection.collapse_to(head, goal);
7565
7566 let transpose_start = display_map
7567 .buffer_snapshot
7568 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7569 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7570 let transpose_end = display_map
7571 .buffer_snapshot
7572 .clip_offset(transpose_offset + 1, Bias::Right);
7573 if let Some(ch) =
7574 display_map.buffer_snapshot.chars_at(transpose_start).next()
7575 {
7576 edits.push((transpose_start..transpose_offset, String::new()));
7577 edits.push((transpose_end..transpose_end, ch.to_string()));
7578 }
7579 }
7580 });
7581 edits
7582 });
7583 this.buffer
7584 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7585 let selections = this.selections.all::<usize>(cx);
7586 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7587 s.select(selections);
7588 });
7589 });
7590 }
7591
7592 pub fn rewrap(&mut self, _: &Rewrap, _: &mut Window, cx: &mut Context<Self>) {
7593 self.rewrap_impl(IsVimMode::No, cx)
7594 }
7595
7596 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut Context<Self>) {
7597 let buffer = self.buffer.read(cx).snapshot(cx);
7598 let selections = self.selections.all::<Point>(cx);
7599 let mut selections = selections.iter().peekable();
7600
7601 let mut edits = Vec::new();
7602 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7603
7604 while let Some(selection) = selections.next() {
7605 let mut start_row = selection.start.row;
7606 let mut end_row = selection.end.row;
7607
7608 // Skip selections that overlap with a range that has already been rewrapped.
7609 let selection_range = start_row..end_row;
7610 if rewrapped_row_ranges
7611 .iter()
7612 .any(|range| range.overlaps(&selection_range))
7613 {
7614 continue;
7615 }
7616
7617 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7618
7619 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7620 match language_scope.language_name().as_ref() {
7621 "Markdown" | "Plain Text" => {
7622 should_rewrap = true;
7623 }
7624 _ => {}
7625 }
7626 }
7627
7628 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7629
7630 // Since not all lines in the selection may be at the same indent
7631 // level, choose the indent size that is the most common between all
7632 // of the lines.
7633 //
7634 // If there is a tie, we use the deepest indent.
7635 let (indent_size, indent_end) = {
7636 let mut indent_size_occurrences = HashMap::default();
7637 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7638
7639 for row in start_row..=end_row {
7640 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7641 rows_by_indent_size.entry(indent).or_default().push(row);
7642 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7643 }
7644
7645 let indent_size = indent_size_occurrences
7646 .into_iter()
7647 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7648 .map(|(indent, _)| indent)
7649 .unwrap_or_default();
7650 let row = rows_by_indent_size[&indent_size][0];
7651 let indent_end = Point::new(row, indent_size.len);
7652
7653 (indent_size, indent_end)
7654 };
7655
7656 let mut line_prefix = indent_size.chars().collect::<String>();
7657
7658 if let Some(comment_prefix) =
7659 buffer
7660 .language_scope_at(selection.head())
7661 .and_then(|language| {
7662 language
7663 .line_comment_prefixes()
7664 .iter()
7665 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7666 .cloned()
7667 })
7668 {
7669 line_prefix.push_str(&comment_prefix);
7670 should_rewrap = true;
7671 }
7672
7673 if !should_rewrap {
7674 continue;
7675 }
7676
7677 if selection.is_empty() {
7678 'expand_upwards: while start_row > 0 {
7679 let prev_row = start_row - 1;
7680 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7681 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7682 {
7683 start_row = prev_row;
7684 } else {
7685 break 'expand_upwards;
7686 }
7687 }
7688
7689 'expand_downwards: while end_row < buffer.max_point().row {
7690 let next_row = end_row + 1;
7691 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7692 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7693 {
7694 end_row = next_row;
7695 } else {
7696 break 'expand_downwards;
7697 }
7698 }
7699 }
7700
7701 let start = Point::new(start_row, 0);
7702 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7703 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7704 let Some(lines_without_prefixes) = selection_text
7705 .lines()
7706 .map(|line| {
7707 line.strip_prefix(&line_prefix)
7708 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7709 .ok_or_else(|| {
7710 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7711 })
7712 })
7713 .collect::<Result<Vec<_>, _>>()
7714 .log_err()
7715 else {
7716 continue;
7717 };
7718
7719 let wrap_column = buffer
7720 .settings_at(Point::new(start_row, 0), cx)
7721 .preferred_line_length as usize;
7722 let wrapped_text = wrap_with_prefix(
7723 line_prefix,
7724 lines_without_prefixes.join(" "),
7725 wrap_column,
7726 tab_size,
7727 );
7728
7729 // TODO: should always use char-based diff while still supporting cursor behavior that
7730 // matches vim.
7731 let diff = match is_vim_mode {
7732 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7733 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7734 };
7735 let mut offset = start.to_offset(&buffer);
7736 let mut moved_since_edit = true;
7737
7738 for change in diff.iter_all_changes() {
7739 let value = change.value();
7740 match change.tag() {
7741 ChangeTag::Equal => {
7742 offset += value.len();
7743 moved_since_edit = true;
7744 }
7745 ChangeTag::Delete => {
7746 let start = buffer.anchor_after(offset);
7747 let end = buffer.anchor_before(offset + value.len());
7748
7749 if moved_since_edit {
7750 edits.push((start..end, String::new()));
7751 } else {
7752 edits.last_mut().unwrap().0.end = end;
7753 }
7754
7755 offset += value.len();
7756 moved_since_edit = false;
7757 }
7758 ChangeTag::Insert => {
7759 if moved_since_edit {
7760 let anchor = buffer.anchor_after(offset);
7761 edits.push((anchor..anchor, value.to_string()));
7762 } else {
7763 edits.last_mut().unwrap().1.push_str(value);
7764 }
7765
7766 moved_since_edit = false;
7767 }
7768 }
7769 }
7770
7771 rewrapped_row_ranges.push(start_row..=end_row);
7772 }
7773
7774 self.buffer
7775 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7776 }
7777
7778 pub fn cut_common(&mut self, window: &mut Window, cx: &mut Context<Self>) -> ClipboardItem {
7779 let mut text = String::new();
7780 let buffer = self.buffer.read(cx).snapshot(cx);
7781 let mut selections = self.selections.all::<Point>(cx);
7782 let mut clipboard_selections = Vec::with_capacity(selections.len());
7783 {
7784 let max_point = buffer.max_point();
7785 let mut is_first = true;
7786 for selection in &mut selections {
7787 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7788 if is_entire_line {
7789 selection.start = Point::new(selection.start.row, 0);
7790 if !selection.is_empty() && selection.end.column == 0 {
7791 selection.end = cmp::min(max_point, selection.end);
7792 } else {
7793 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7794 }
7795 selection.goal = SelectionGoal::None;
7796 }
7797 if is_first {
7798 is_first = false;
7799 } else {
7800 text += "\n";
7801 }
7802 let mut len = 0;
7803 for chunk in buffer.text_for_range(selection.start..selection.end) {
7804 text.push_str(chunk);
7805 len += chunk.len();
7806 }
7807 clipboard_selections.push(ClipboardSelection {
7808 len,
7809 is_entire_line,
7810 first_line_indent: buffer
7811 .indent_size_for_line(MultiBufferRow(selection.start.row))
7812 .len,
7813 });
7814 }
7815 }
7816
7817 self.transact(window, cx, |this, window, cx| {
7818 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7819 s.select(selections);
7820 });
7821 this.insert("", window, cx);
7822 });
7823 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7824 }
7825
7826 pub fn cut(&mut self, _: &Cut, window: &mut Window, cx: &mut Context<Self>) {
7827 let item = self.cut_common(window, cx);
7828 cx.write_to_clipboard(item);
7829 }
7830
7831 pub fn kill_ring_cut(&mut self, _: &KillRingCut, window: &mut Window, cx: &mut Context<Self>) {
7832 self.change_selections(None, window, cx, |s| {
7833 s.move_with(|snapshot, sel| {
7834 if sel.is_empty() {
7835 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7836 }
7837 });
7838 });
7839 let item = self.cut_common(window, cx);
7840 cx.set_global(KillRing(item))
7841 }
7842
7843 pub fn kill_ring_yank(
7844 &mut self,
7845 _: &KillRingYank,
7846 window: &mut Window,
7847 cx: &mut Context<Self>,
7848 ) {
7849 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7850 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7851 (kill_ring.text().to_string(), kill_ring.metadata_json())
7852 } else {
7853 return;
7854 }
7855 } else {
7856 return;
7857 };
7858 self.do_paste(&text, metadata, false, window, cx);
7859 }
7860
7861 pub fn copy(&mut self, _: &Copy, _: &mut Window, cx: &mut Context<Self>) {
7862 let selections = self.selections.all::<Point>(cx);
7863 let buffer = self.buffer.read(cx).read(cx);
7864 let mut text = String::new();
7865
7866 let mut clipboard_selections = Vec::with_capacity(selections.len());
7867 {
7868 let max_point = buffer.max_point();
7869 let mut is_first = true;
7870 for selection in selections.iter() {
7871 let mut start = selection.start;
7872 let mut end = selection.end;
7873 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7874 if is_entire_line {
7875 start = Point::new(start.row, 0);
7876 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7877 }
7878 if is_first {
7879 is_first = false;
7880 } else {
7881 text += "\n";
7882 }
7883 let mut len = 0;
7884 for chunk in buffer.text_for_range(start..end) {
7885 text.push_str(chunk);
7886 len += chunk.len();
7887 }
7888 clipboard_selections.push(ClipboardSelection {
7889 len,
7890 is_entire_line,
7891 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7892 });
7893 }
7894 }
7895
7896 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7897 text,
7898 clipboard_selections,
7899 ));
7900 }
7901
7902 pub fn do_paste(
7903 &mut self,
7904 text: &String,
7905 clipboard_selections: Option<Vec<ClipboardSelection>>,
7906 handle_entire_lines: bool,
7907 window: &mut Window,
7908 cx: &mut Context<Self>,
7909 ) {
7910 if self.read_only(cx) {
7911 return;
7912 }
7913
7914 let clipboard_text = Cow::Borrowed(text);
7915
7916 self.transact(window, cx, |this, window, cx| {
7917 if let Some(mut clipboard_selections) = clipboard_selections {
7918 let old_selections = this.selections.all::<usize>(cx);
7919 let all_selections_were_entire_line =
7920 clipboard_selections.iter().all(|s| s.is_entire_line);
7921 let first_selection_indent_column =
7922 clipboard_selections.first().map(|s| s.first_line_indent);
7923 if clipboard_selections.len() != old_selections.len() {
7924 clipboard_selections.drain(..);
7925 }
7926 let cursor_offset = this.selections.last::<usize>(cx).head();
7927 let mut auto_indent_on_paste = true;
7928
7929 this.buffer.update(cx, |buffer, cx| {
7930 let snapshot = buffer.read(cx);
7931 auto_indent_on_paste =
7932 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7933
7934 let mut start_offset = 0;
7935 let mut edits = Vec::new();
7936 let mut original_indent_columns = Vec::new();
7937 for (ix, selection) in old_selections.iter().enumerate() {
7938 let to_insert;
7939 let entire_line;
7940 let original_indent_column;
7941 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7942 let end_offset = start_offset + clipboard_selection.len;
7943 to_insert = &clipboard_text[start_offset..end_offset];
7944 entire_line = clipboard_selection.is_entire_line;
7945 start_offset = end_offset + 1;
7946 original_indent_column = Some(clipboard_selection.first_line_indent);
7947 } else {
7948 to_insert = clipboard_text.as_str();
7949 entire_line = all_selections_were_entire_line;
7950 original_indent_column = first_selection_indent_column
7951 }
7952
7953 // If the corresponding selection was empty when this slice of the
7954 // clipboard text was written, then the entire line containing the
7955 // selection was copied. If this selection is also currently empty,
7956 // then paste the line before the current line of the buffer.
7957 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7958 let column = selection.start.to_point(&snapshot).column as usize;
7959 let line_start = selection.start - column;
7960 line_start..line_start
7961 } else {
7962 selection.range()
7963 };
7964
7965 edits.push((range, to_insert));
7966 original_indent_columns.extend(original_indent_column);
7967 }
7968 drop(snapshot);
7969
7970 buffer.edit(
7971 edits,
7972 if auto_indent_on_paste {
7973 Some(AutoindentMode::Block {
7974 original_indent_columns,
7975 })
7976 } else {
7977 None
7978 },
7979 cx,
7980 );
7981 });
7982
7983 let selections = this.selections.all::<usize>(cx);
7984 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
7985 s.select(selections)
7986 });
7987 } else {
7988 this.insert(&clipboard_text, window, cx);
7989 }
7990 });
7991 }
7992
7993 pub fn paste(&mut self, _: &Paste, window: &mut Window, cx: &mut Context<Self>) {
7994 if let Some(item) = cx.read_from_clipboard() {
7995 let entries = item.entries();
7996
7997 match entries.first() {
7998 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7999 // of all the pasted entries.
8000 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
8001 .do_paste(
8002 clipboard_string.text(),
8003 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
8004 true,
8005 window,
8006 cx,
8007 ),
8008 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, window, cx),
8009 }
8010 }
8011 }
8012
8013 pub fn undo(&mut self, _: &Undo, window: &mut Window, cx: &mut Context<Self>) {
8014 if self.read_only(cx) {
8015 return;
8016 }
8017
8018 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
8019 if let Some((selections, _)) =
8020 self.selection_history.transaction(transaction_id).cloned()
8021 {
8022 self.change_selections(None, window, cx, |s| {
8023 s.select_anchors(selections.to_vec());
8024 });
8025 }
8026 self.request_autoscroll(Autoscroll::fit(), cx);
8027 self.unmark_text(window, cx);
8028 self.refresh_inline_completion(true, false, window, cx);
8029 cx.emit(EditorEvent::Edited { transaction_id });
8030 cx.emit(EditorEvent::TransactionUndone { transaction_id });
8031 }
8032 }
8033
8034 pub fn redo(&mut self, _: &Redo, window: &mut Window, cx: &mut Context<Self>) {
8035 if self.read_only(cx) {
8036 return;
8037 }
8038
8039 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
8040 if let Some((_, Some(selections))) =
8041 self.selection_history.transaction(transaction_id).cloned()
8042 {
8043 self.change_selections(None, window, cx, |s| {
8044 s.select_anchors(selections.to_vec());
8045 });
8046 }
8047 self.request_autoscroll(Autoscroll::fit(), cx);
8048 self.unmark_text(window, cx);
8049 self.refresh_inline_completion(true, false, window, cx);
8050 cx.emit(EditorEvent::Edited { transaction_id });
8051 }
8052 }
8053
8054 pub fn finalize_last_transaction(&mut self, cx: &mut Context<Self>) {
8055 self.buffer
8056 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
8057 }
8058
8059 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut Context<Self>) {
8060 self.buffer
8061 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
8062 }
8063
8064 pub fn move_left(&mut self, _: &MoveLeft, window: &mut Window, cx: &mut Context<Self>) {
8065 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8066 let line_mode = s.line_mode;
8067 s.move_with(|map, selection| {
8068 let cursor = if selection.is_empty() && !line_mode {
8069 movement::left(map, selection.start)
8070 } else {
8071 selection.start
8072 };
8073 selection.collapse_to(cursor, SelectionGoal::None);
8074 });
8075 })
8076 }
8077
8078 pub fn select_left(&mut self, _: &SelectLeft, window: &mut Window, cx: &mut Context<Self>) {
8079 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8080 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
8081 })
8082 }
8083
8084 pub fn move_right(&mut self, _: &MoveRight, window: &mut Window, cx: &mut Context<Self>) {
8085 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8086 let line_mode = s.line_mode;
8087 s.move_with(|map, selection| {
8088 let cursor = if selection.is_empty() && !line_mode {
8089 movement::right(map, selection.end)
8090 } else {
8091 selection.end
8092 };
8093 selection.collapse_to(cursor, SelectionGoal::None)
8094 });
8095 })
8096 }
8097
8098 pub fn select_right(&mut self, _: &SelectRight, window: &mut Window, cx: &mut Context<Self>) {
8099 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8100 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
8101 })
8102 }
8103
8104 pub fn move_up(&mut self, _: &MoveUp, window: &mut Window, cx: &mut Context<Self>) {
8105 if self.take_rename(true, window, cx).is_some() {
8106 return;
8107 }
8108
8109 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8110 cx.propagate();
8111 return;
8112 }
8113
8114 let text_layout_details = &self.text_layout_details(window);
8115 let selection_count = self.selections.count();
8116 let first_selection = self.selections.first_anchor();
8117
8118 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8119 let line_mode = s.line_mode;
8120 s.move_with(|map, selection| {
8121 if !selection.is_empty() && !line_mode {
8122 selection.goal = SelectionGoal::None;
8123 }
8124 let (cursor, goal) = movement::up(
8125 map,
8126 selection.start,
8127 selection.goal,
8128 false,
8129 text_layout_details,
8130 );
8131 selection.collapse_to(cursor, goal);
8132 });
8133 });
8134
8135 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
8136 {
8137 cx.propagate();
8138 }
8139 }
8140
8141 pub fn move_up_by_lines(
8142 &mut self,
8143 action: &MoveUpByLines,
8144 window: &mut Window,
8145 cx: &mut Context<Self>,
8146 ) {
8147 if self.take_rename(true, window, cx).is_some() {
8148 return;
8149 }
8150
8151 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8152 cx.propagate();
8153 return;
8154 }
8155
8156 let text_layout_details = &self.text_layout_details(window);
8157
8158 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8159 let line_mode = s.line_mode;
8160 s.move_with(|map, selection| {
8161 if !selection.is_empty() && !line_mode {
8162 selection.goal = SelectionGoal::None;
8163 }
8164 let (cursor, goal) = movement::up_by_rows(
8165 map,
8166 selection.start,
8167 action.lines,
8168 selection.goal,
8169 false,
8170 text_layout_details,
8171 );
8172 selection.collapse_to(cursor, goal);
8173 });
8174 })
8175 }
8176
8177 pub fn move_down_by_lines(
8178 &mut self,
8179 action: &MoveDownByLines,
8180 window: &mut Window,
8181 cx: &mut Context<Self>,
8182 ) {
8183 if self.take_rename(true, window, cx).is_some() {
8184 return;
8185 }
8186
8187 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8188 cx.propagate();
8189 return;
8190 }
8191
8192 let text_layout_details = &self.text_layout_details(window);
8193
8194 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8195 let line_mode = s.line_mode;
8196 s.move_with(|map, selection| {
8197 if !selection.is_empty() && !line_mode {
8198 selection.goal = SelectionGoal::None;
8199 }
8200 let (cursor, goal) = movement::down_by_rows(
8201 map,
8202 selection.start,
8203 action.lines,
8204 selection.goal,
8205 false,
8206 text_layout_details,
8207 );
8208 selection.collapse_to(cursor, goal);
8209 });
8210 })
8211 }
8212
8213 pub fn select_down_by_lines(
8214 &mut self,
8215 action: &SelectDownByLines,
8216 window: &mut Window,
8217 cx: &mut Context<Self>,
8218 ) {
8219 let text_layout_details = &self.text_layout_details(window);
8220 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8221 s.move_heads_with(|map, head, goal| {
8222 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
8223 })
8224 })
8225 }
8226
8227 pub fn select_up_by_lines(
8228 &mut self,
8229 action: &SelectUpByLines,
8230 window: &mut Window,
8231 cx: &mut Context<Self>,
8232 ) {
8233 let text_layout_details = &self.text_layout_details(window);
8234 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8235 s.move_heads_with(|map, head, goal| {
8236 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
8237 })
8238 })
8239 }
8240
8241 pub fn select_page_up(
8242 &mut self,
8243 _: &SelectPageUp,
8244 window: &mut Window,
8245 cx: &mut Context<Self>,
8246 ) {
8247 let Some(row_count) = self.visible_row_count() else {
8248 return;
8249 };
8250
8251 let text_layout_details = &self.text_layout_details(window);
8252
8253 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8254 s.move_heads_with(|map, head, goal| {
8255 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
8256 })
8257 })
8258 }
8259
8260 pub fn move_page_up(
8261 &mut self,
8262 action: &MovePageUp,
8263 window: &mut Window,
8264 cx: &mut Context<Self>,
8265 ) {
8266 if self.take_rename(true, window, cx).is_some() {
8267 return;
8268 }
8269
8270 if self
8271 .context_menu
8272 .borrow_mut()
8273 .as_mut()
8274 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
8275 .unwrap_or(false)
8276 {
8277 return;
8278 }
8279
8280 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8281 cx.propagate();
8282 return;
8283 }
8284
8285 let Some(row_count) = self.visible_row_count() else {
8286 return;
8287 };
8288
8289 let autoscroll = if action.center_cursor {
8290 Autoscroll::center()
8291 } else {
8292 Autoscroll::fit()
8293 };
8294
8295 let text_layout_details = &self.text_layout_details(window);
8296
8297 self.change_selections(Some(autoscroll), window, cx, |s| {
8298 let line_mode = s.line_mode;
8299 s.move_with(|map, selection| {
8300 if !selection.is_empty() && !line_mode {
8301 selection.goal = SelectionGoal::None;
8302 }
8303 let (cursor, goal) = movement::up_by_rows(
8304 map,
8305 selection.end,
8306 row_count,
8307 selection.goal,
8308 false,
8309 text_layout_details,
8310 );
8311 selection.collapse_to(cursor, goal);
8312 });
8313 });
8314 }
8315
8316 pub fn select_up(&mut self, _: &SelectUp, window: &mut Window, cx: &mut Context<Self>) {
8317 let text_layout_details = &self.text_layout_details(window);
8318 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8319 s.move_heads_with(|map, head, goal| {
8320 movement::up(map, head, goal, false, text_layout_details)
8321 })
8322 })
8323 }
8324
8325 pub fn move_down(&mut self, _: &MoveDown, window: &mut Window, cx: &mut Context<Self>) {
8326 self.take_rename(true, window, cx);
8327
8328 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8329 cx.propagate();
8330 return;
8331 }
8332
8333 let text_layout_details = &self.text_layout_details(window);
8334 let selection_count = self.selections.count();
8335 let first_selection = self.selections.first_anchor();
8336
8337 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8338 let line_mode = s.line_mode;
8339 s.move_with(|map, selection| {
8340 if !selection.is_empty() && !line_mode {
8341 selection.goal = SelectionGoal::None;
8342 }
8343 let (cursor, goal) = movement::down(
8344 map,
8345 selection.end,
8346 selection.goal,
8347 false,
8348 text_layout_details,
8349 );
8350 selection.collapse_to(cursor, goal);
8351 });
8352 });
8353
8354 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
8355 {
8356 cx.propagate();
8357 }
8358 }
8359
8360 pub fn select_page_down(
8361 &mut self,
8362 _: &SelectPageDown,
8363 window: &mut Window,
8364 cx: &mut Context<Self>,
8365 ) {
8366 let Some(row_count) = self.visible_row_count() else {
8367 return;
8368 };
8369
8370 let text_layout_details = &self.text_layout_details(window);
8371
8372 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8373 s.move_heads_with(|map, head, goal| {
8374 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
8375 })
8376 })
8377 }
8378
8379 pub fn move_page_down(
8380 &mut self,
8381 action: &MovePageDown,
8382 window: &mut Window,
8383 cx: &mut Context<Self>,
8384 ) {
8385 if self.take_rename(true, window, cx).is_some() {
8386 return;
8387 }
8388
8389 if self
8390 .context_menu
8391 .borrow_mut()
8392 .as_mut()
8393 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
8394 .unwrap_or(false)
8395 {
8396 return;
8397 }
8398
8399 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8400 cx.propagate();
8401 return;
8402 }
8403
8404 let Some(row_count) = self.visible_row_count() else {
8405 return;
8406 };
8407
8408 let autoscroll = if action.center_cursor {
8409 Autoscroll::center()
8410 } else {
8411 Autoscroll::fit()
8412 };
8413
8414 let text_layout_details = &self.text_layout_details(window);
8415 self.change_selections(Some(autoscroll), window, cx, |s| {
8416 let line_mode = s.line_mode;
8417 s.move_with(|map, selection| {
8418 if !selection.is_empty() && !line_mode {
8419 selection.goal = SelectionGoal::None;
8420 }
8421 let (cursor, goal) = movement::down_by_rows(
8422 map,
8423 selection.end,
8424 row_count,
8425 selection.goal,
8426 false,
8427 text_layout_details,
8428 );
8429 selection.collapse_to(cursor, goal);
8430 });
8431 });
8432 }
8433
8434 pub fn select_down(&mut self, _: &SelectDown, window: &mut Window, cx: &mut Context<Self>) {
8435 let text_layout_details = &self.text_layout_details(window);
8436 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8437 s.move_heads_with(|map, head, goal| {
8438 movement::down(map, head, goal, false, text_layout_details)
8439 })
8440 });
8441 }
8442
8443 pub fn context_menu_first(
8444 &mut self,
8445 _: &ContextMenuFirst,
8446 _window: &mut Window,
8447 cx: &mut Context<Self>,
8448 ) {
8449 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
8450 context_menu.select_first(self.completion_provider.as_deref(), cx);
8451 }
8452 }
8453
8454 pub fn context_menu_prev(
8455 &mut self,
8456 _: &ContextMenuPrev,
8457 _window: &mut Window,
8458 cx: &mut Context<Self>,
8459 ) {
8460 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
8461 context_menu.select_prev(self.completion_provider.as_deref(), cx);
8462 }
8463 }
8464
8465 pub fn context_menu_next(
8466 &mut self,
8467 _: &ContextMenuNext,
8468 _window: &mut Window,
8469 cx: &mut Context<Self>,
8470 ) {
8471 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
8472 context_menu.select_next(self.completion_provider.as_deref(), cx);
8473 }
8474 }
8475
8476 pub fn context_menu_last(
8477 &mut self,
8478 _: &ContextMenuLast,
8479 _window: &mut Window,
8480 cx: &mut Context<Self>,
8481 ) {
8482 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
8483 context_menu.select_last(self.completion_provider.as_deref(), cx);
8484 }
8485 }
8486
8487 pub fn move_to_previous_word_start(
8488 &mut self,
8489 _: &MoveToPreviousWordStart,
8490 window: &mut Window,
8491 cx: &mut Context<Self>,
8492 ) {
8493 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8494 s.move_cursors_with(|map, head, _| {
8495 (
8496 movement::previous_word_start(map, head),
8497 SelectionGoal::None,
8498 )
8499 });
8500 })
8501 }
8502
8503 pub fn move_to_previous_subword_start(
8504 &mut self,
8505 _: &MoveToPreviousSubwordStart,
8506 window: &mut Window,
8507 cx: &mut Context<Self>,
8508 ) {
8509 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8510 s.move_cursors_with(|map, head, _| {
8511 (
8512 movement::previous_subword_start(map, head),
8513 SelectionGoal::None,
8514 )
8515 });
8516 })
8517 }
8518
8519 pub fn select_to_previous_word_start(
8520 &mut self,
8521 _: &SelectToPreviousWordStart,
8522 window: &mut Window,
8523 cx: &mut Context<Self>,
8524 ) {
8525 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8526 s.move_heads_with(|map, head, _| {
8527 (
8528 movement::previous_word_start(map, head),
8529 SelectionGoal::None,
8530 )
8531 });
8532 })
8533 }
8534
8535 pub fn select_to_previous_subword_start(
8536 &mut self,
8537 _: &SelectToPreviousSubwordStart,
8538 window: &mut Window,
8539 cx: &mut Context<Self>,
8540 ) {
8541 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8542 s.move_heads_with(|map, head, _| {
8543 (
8544 movement::previous_subword_start(map, head),
8545 SelectionGoal::None,
8546 )
8547 });
8548 })
8549 }
8550
8551 pub fn delete_to_previous_word_start(
8552 &mut self,
8553 action: &DeleteToPreviousWordStart,
8554 window: &mut Window,
8555 cx: &mut Context<Self>,
8556 ) {
8557 self.transact(window, cx, |this, window, cx| {
8558 this.select_autoclose_pair(window, cx);
8559 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8560 let line_mode = s.line_mode;
8561 s.move_with(|map, selection| {
8562 if selection.is_empty() && !line_mode {
8563 let cursor = if action.ignore_newlines {
8564 movement::previous_word_start(map, selection.head())
8565 } else {
8566 movement::previous_word_start_or_newline(map, selection.head())
8567 };
8568 selection.set_head(cursor, SelectionGoal::None);
8569 }
8570 });
8571 });
8572 this.insert("", window, cx);
8573 });
8574 }
8575
8576 pub fn delete_to_previous_subword_start(
8577 &mut self,
8578 _: &DeleteToPreviousSubwordStart,
8579 window: &mut Window,
8580 cx: &mut Context<Self>,
8581 ) {
8582 self.transact(window, cx, |this, window, cx| {
8583 this.select_autoclose_pair(window, cx);
8584 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8585 let line_mode = s.line_mode;
8586 s.move_with(|map, selection| {
8587 if selection.is_empty() && !line_mode {
8588 let cursor = movement::previous_subword_start(map, selection.head());
8589 selection.set_head(cursor, SelectionGoal::None);
8590 }
8591 });
8592 });
8593 this.insert("", window, cx);
8594 });
8595 }
8596
8597 pub fn move_to_next_word_end(
8598 &mut self,
8599 _: &MoveToNextWordEnd,
8600 window: &mut Window,
8601 cx: &mut Context<Self>,
8602 ) {
8603 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8604 s.move_cursors_with(|map, head, _| {
8605 (movement::next_word_end(map, head), SelectionGoal::None)
8606 });
8607 })
8608 }
8609
8610 pub fn move_to_next_subword_end(
8611 &mut self,
8612 _: &MoveToNextSubwordEnd,
8613 window: &mut Window,
8614 cx: &mut Context<Self>,
8615 ) {
8616 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8617 s.move_cursors_with(|map, head, _| {
8618 (movement::next_subword_end(map, head), SelectionGoal::None)
8619 });
8620 })
8621 }
8622
8623 pub fn select_to_next_word_end(
8624 &mut self,
8625 _: &SelectToNextWordEnd,
8626 window: &mut Window,
8627 cx: &mut Context<Self>,
8628 ) {
8629 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8630 s.move_heads_with(|map, head, _| {
8631 (movement::next_word_end(map, head), SelectionGoal::None)
8632 });
8633 })
8634 }
8635
8636 pub fn select_to_next_subword_end(
8637 &mut self,
8638 _: &SelectToNextSubwordEnd,
8639 window: &mut Window,
8640 cx: &mut Context<Self>,
8641 ) {
8642 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8643 s.move_heads_with(|map, head, _| {
8644 (movement::next_subword_end(map, head), SelectionGoal::None)
8645 });
8646 })
8647 }
8648
8649 pub fn delete_to_next_word_end(
8650 &mut self,
8651 action: &DeleteToNextWordEnd,
8652 window: &mut Window,
8653 cx: &mut Context<Self>,
8654 ) {
8655 self.transact(window, cx, |this, window, cx| {
8656 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8657 let line_mode = s.line_mode;
8658 s.move_with(|map, selection| {
8659 if selection.is_empty() && !line_mode {
8660 let cursor = if action.ignore_newlines {
8661 movement::next_word_end(map, selection.head())
8662 } else {
8663 movement::next_word_end_or_newline(map, selection.head())
8664 };
8665 selection.set_head(cursor, SelectionGoal::None);
8666 }
8667 });
8668 });
8669 this.insert("", window, cx);
8670 });
8671 }
8672
8673 pub fn delete_to_next_subword_end(
8674 &mut self,
8675 _: &DeleteToNextSubwordEnd,
8676 window: &mut Window,
8677 cx: &mut Context<Self>,
8678 ) {
8679 self.transact(window, cx, |this, window, cx| {
8680 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8681 s.move_with(|map, selection| {
8682 if selection.is_empty() {
8683 let cursor = movement::next_subword_end(map, selection.head());
8684 selection.set_head(cursor, SelectionGoal::None);
8685 }
8686 });
8687 });
8688 this.insert("", window, cx);
8689 });
8690 }
8691
8692 pub fn move_to_beginning_of_line(
8693 &mut self,
8694 action: &MoveToBeginningOfLine,
8695 window: &mut Window,
8696 cx: &mut Context<Self>,
8697 ) {
8698 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8699 s.move_cursors_with(|map, head, _| {
8700 (
8701 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8702 SelectionGoal::None,
8703 )
8704 });
8705 })
8706 }
8707
8708 pub fn select_to_beginning_of_line(
8709 &mut self,
8710 action: &SelectToBeginningOfLine,
8711 window: &mut Window,
8712 cx: &mut Context<Self>,
8713 ) {
8714 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8715 s.move_heads_with(|map, head, _| {
8716 (
8717 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8718 SelectionGoal::None,
8719 )
8720 });
8721 });
8722 }
8723
8724 pub fn delete_to_beginning_of_line(
8725 &mut self,
8726 _: &DeleteToBeginningOfLine,
8727 window: &mut Window,
8728 cx: &mut Context<Self>,
8729 ) {
8730 self.transact(window, cx, |this, window, cx| {
8731 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8732 s.move_with(|_, selection| {
8733 selection.reversed = true;
8734 });
8735 });
8736
8737 this.select_to_beginning_of_line(
8738 &SelectToBeginningOfLine {
8739 stop_at_soft_wraps: false,
8740 },
8741 window,
8742 cx,
8743 );
8744 this.backspace(&Backspace, window, cx);
8745 });
8746 }
8747
8748 pub fn move_to_end_of_line(
8749 &mut self,
8750 action: &MoveToEndOfLine,
8751 window: &mut Window,
8752 cx: &mut Context<Self>,
8753 ) {
8754 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8755 s.move_cursors_with(|map, head, _| {
8756 (
8757 movement::line_end(map, head, action.stop_at_soft_wraps),
8758 SelectionGoal::None,
8759 )
8760 });
8761 })
8762 }
8763
8764 pub fn select_to_end_of_line(
8765 &mut self,
8766 action: &SelectToEndOfLine,
8767 window: &mut Window,
8768 cx: &mut Context<Self>,
8769 ) {
8770 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8771 s.move_heads_with(|map, head, _| {
8772 (
8773 movement::line_end(map, head, action.stop_at_soft_wraps),
8774 SelectionGoal::None,
8775 )
8776 });
8777 })
8778 }
8779
8780 pub fn delete_to_end_of_line(
8781 &mut self,
8782 _: &DeleteToEndOfLine,
8783 window: &mut Window,
8784 cx: &mut Context<Self>,
8785 ) {
8786 self.transact(window, cx, |this, window, cx| {
8787 this.select_to_end_of_line(
8788 &SelectToEndOfLine {
8789 stop_at_soft_wraps: false,
8790 },
8791 window,
8792 cx,
8793 );
8794 this.delete(&Delete, window, cx);
8795 });
8796 }
8797
8798 pub fn cut_to_end_of_line(
8799 &mut self,
8800 _: &CutToEndOfLine,
8801 window: &mut Window,
8802 cx: &mut Context<Self>,
8803 ) {
8804 self.transact(window, cx, |this, window, cx| {
8805 this.select_to_end_of_line(
8806 &SelectToEndOfLine {
8807 stop_at_soft_wraps: false,
8808 },
8809 window,
8810 cx,
8811 );
8812 this.cut(&Cut, window, cx);
8813 });
8814 }
8815
8816 pub fn move_to_start_of_paragraph(
8817 &mut self,
8818 _: &MoveToStartOfParagraph,
8819 window: &mut Window,
8820 cx: &mut Context<Self>,
8821 ) {
8822 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8823 cx.propagate();
8824 return;
8825 }
8826
8827 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8828 s.move_with(|map, selection| {
8829 selection.collapse_to(
8830 movement::start_of_paragraph(map, selection.head(), 1),
8831 SelectionGoal::None,
8832 )
8833 });
8834 })
8835 }
8836
8837 pub fn move_to_end_of_paragraph(
8838 &mut self,
8839 _: &MoveToEndOfParagraph,
8840 window: &mut Window,
8841 cx: &mut Context<Self>,
8842 ) {
8843 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8844 cx.propagate();
8845 return;
8846 }
8847
8848 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8849 s.move_with(|map, selection| {
8850 selection.collapse_to(
8851 movement::end_of_paragraph(map, selection.head(), 1),
8852 SelectionGoal::None,
8853 )
8854 });
8855 })
8856 }
8857
8858 pub fn select_to_start_of_paragraph(
8859 &mut self,
8860 _: &SelectToStartOfParagraph,
8861 window: &mut Window,
8862 cx: &mut Context<Self>,
8863 ) {
8864 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8865 cx.propagate();
8866 return;
8867 }
8868
8869 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8870 s.move_heads_with(|map, head, _| {
8871 (
8872 movement::start_of_paragraph(map, head, 1),
8873 SelectionGoal::None,
8874 )
8875 });
8876 })
8877 }
8878
8879 pub fn select_to_end_of_paragraph(
8880 &mut self,
8881 _: &SelectToEndOfParagraph,
8882 window: &mut Window,
8883 cx: &mut Context<Self>,
8884 ) {
8885 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8886 cx.propagate();
8887 return;
8888 }
8889
8890 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8891 s.move_heads_with(|map, head, _| {
8892 (
8893 movement::end_of_paragraph(map, head, 1),
8894 SelectionGoal::None,
8895 )
8896 });
8897 })
8898 }
8899
8900 pub fn move_to_beginning(
8901 &mut self,
8902 _: &MoveToBeginning,
8903 window: &mut Window,
8904 cx: &mut Context<Self>,
8905 ) {
8906 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8907 cx.propagate();
8908 return;
8909 }
8910
8911 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8912 s.select_ranges(vec![0..0]);
8913 });
8914 }
8915
8916 pub fn select_to_beginning(
8917 &mut self,
8918 _: &SelectToBeginning,
8919 window: &mut Window,
8920 cx: &mut Context<Self>,
8921 ) {
8922 let mut selection = self.selections.last::<Point>(cx);
8923 selection.set_head(Point::zero(), SelectionGoal::None);
8924
8925 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8926 s.select(vec![selection]);
8927 });
8928 }
8929
8930 pub fn move_to_end(&mut self, _: &MoveToEnd, window: &mut Window, cx: &mut Context<Self>) {
8931 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8932 cx.propagate();
8933 return;
8934 }
8935
8936 let cursor = self.buffer.read(cx).read(cx).len();
8937 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8938 s.select_ranges(vec![cursor..cursor])
8939 });
8940 }
8941
8942 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8943 self.nav_history = nav_history;
8944 }
8945
8946 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8947 self.nav_history.as_ref()
8948 }
8949
8950 fn push_to_nav_history(
8951 &mut self,
8952 cursor_anchor: Anchor,
8953 new_position: Option<Point>,
8954 cx: &mut Context<Self>,
8955 ) {
8956 if let Some(nav_history) = self.nav_history.as_mut() {
8957 let buffer = self.buffer.read(cx).read(cx);
8958 let cursor_position = cursor_anchor.to_point(&buffer);
8959 let scroll_state = self.scroll_manager.anchor();
8960 let scroll_top_row = scroll_state.top_row(&buffer);
8961 drop(buffer);
8962
8963 if let Some(new_position) = new_position {
8964 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8965 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8966 return;
8967 }
8968 }
8969
8970 nav_history.push(
8971 Some(NavigationData {
8972 cursor_anchor,
8973 cursor_position,
8974 scroll_anchor: scroll_state,
8975 scroll_top_row,
8976 }),
8977 cx,
8978 );
8979 }
8980 }
8981
8982 pub fn select_to_end(&mut self, _: &SelectToEnd, window: &mut Window, cx: &mut Context<Self>) {
8983 let buffer = self.buffer.read(cx).snapshot(cx);
8984 let mut selection = self.selections.first::<usize>(cx);
8985 selection.set_head(buffer.len(), SelectionGoal::None);
8986 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
8987 s.select(vec![selection]);
8988 });
8989 }
8990
8991 pub fn select_all(&mut self, _: &SelectAll, window: &mut Window, cx: &mut Context<Self>) {
8992 let end = self.buffer.read(cx).read(cx).len();
8993 self.change_selections(None, window, cx, |s| {
8994 s.select_ranges(vec![0..end]);
8995 });
8996 }
8997
8998 pub fn select_line(&mut self, _: &SelectLine, window: &mut Window, cx: &mut Context<Self>) {
8999 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9000 let mut selections = self.selections.all::<Point>(cx);
9001 let max_point = display_map.buffer_snapshot.max_point();
9002 for selection in &mut selections {
9003 let rows = selection.spanned_rows(true, &display_map);
9004 selection.start = Point::new(rows.start.0, 0);
9005 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
9006 selection.reversed = false;
9007 }
9008 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9009 s.select(selections);
9010 });
9011 }
9012
9013 pub fn split_selection_into_lines(
9014 &mut self,
9015 _: &SplitSelectionIntoLines,
9016 window: &mut Window,
9017 cx: &mut Context<Self>,
9018 ) {
9019 let mut to_unfold = Vec::new();
9020 let mut new_selection_ranges = Vec::new();
9021 {
9022 let selections = self.selections.all::<Point>(cx);
9023 let buffer = self.buffer.read(cx).read(cx);
9024 for selection in selections {
9025 for row in selection.start.row..selection.end.row {
9026 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
9027 new_selection_ranges.push(cursor..cursor);
9028 }
9029 new_selection_ranges.push(selection.end..selection.end);
9030 to_unfold.push(selection.start..selection.end);
9031 }
9032 }
9033 self.unfold_ranges(&to_unfold, true, true, cx);
9034 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9035 s.select_ranges(new_selection_ranges);
9036 });
9037 }
9038
9039 pub fn add_selection_above(
9040 &mut self,
9041 _: &AddSelectionAbove,
9042 window: &mut Window,
9043 cx: &mut Context<Self>,
9044 ) {
9045 self.add_selection(true, window, cx);
9046 }
9047
9048 pub fn add_selection_below(
9049 &mut self,
9050 _: &AddSelectionBelow,
9051 window: &mut Window,
9052 cx: &mut Context<Self>,
9053 ) {
9054 self.add_selection(false, window, cx);
9055 }
9056
9057 fn add_selection(&mut self, above: bool, window: &mut Window, cx: &mut Context<Self>) {
9058 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9059 let mut selections = self.selections.all::<Point>(cx);
9060 let text_layout_details = self.text_layout_details(window);
9061 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
9062 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
9063 let range = oldest_selection.display_range(&display_map).sorted();
9064
9065 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
9066 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
9067 let positions = start_x.min(end_x)..start_x.max(end_x);
9068
9069 selections.clear();
9070 let mut stack = Vec::new();
9071 for row in range.start.row().0..=range.end.row().0 {
9072 if let Some(selection) = self.selections.build_columnar_selection(
9073 &display_map,
9074 DisplayRow(row),
9075 &positions,
9076 oldest_selection.reversed,
9077 &text_layout_details,
9078 ) {
9079 stack.push(selection.id);
9080 selections.push(selection);
9081 }
9082 }
9083
9084 if above {
9085 stack.reverse();
9086 }
9087
9088 AddSelectionsState { above, stack }
9089 });
9090
9091 let last_added_selection = *state.stack.last().unwrap();
9092 let mut new_selections = Vec::new();
9093 if above == state.above {
9094 let end_row = if above {
9095 DisplayRow(0)
9096 } else {
9097 display_map.max_point().row()
9098 };
9099
9100 'outer: for selection in selections {
9101 if selection.id == last_added_selection {
9102 let range = selection.display_range(&display_map).sorted();
9103 debug_assert_eq!(range.start.row(), range.end.row());
9104 let mut row = range.start.row();
9105 let positions =
9106 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
9107 px(start)..px(end)
9108 } else {
9109 let start_x =
9110 display_map.x_for_display_point(range.start, &text_layout_details);
9111 let end_x =
9112 display_map.x_for_display_point(range.end, &text_layout_details);
9113 start_x.min(end_x)..start_x.max(end_x)
9114 };
9115
9116 while row != end_row {
9117 if above {
9118 row.0 -= 1;
9119 } else {
9120 row.0 += 1;
9121 }
9122
9123 if let Some(new_selection) = self.selections.build_columnar_selection(
9124 &display_map,
9125 row,
9126 &positions,
9127 selection.reversed,
9128 &text_layout_details,
9129 ) {
9130 state.stack.push(new_selection.id);
9131 if above {
9132 new_selections.push(new_selection);
9133 new_selections.push(selection);
9134 } else {
9135 new_selections.push(selection);
9136 new_selections.push(new_selection);
9137 }
9138
9139 continue 'outer;
9140 }
9141 }
9142 }
9143
9144 new_selections.push(selection);
9145 }
9146 } else {
9147 new_selections = selections;
9148 new_selections.retain(|s| s.id != last_added_selection);
9149 state.stack.pop();
9150 }
9151
9152 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9153 s.select(new_selections);
9154 });
9155 if state.stack.len() > 1 {
9156 self.add_selections_state = Some(state);
9157 }
9158 }
9159
9160 pub fn select_next_match_internal(
9161 &mut self,
9162 display_map: &DisplaySnapshot,
9163 replace_newest: bool,
9164 autoscroll: Option<Autoscroll>,
9165 window: &mut Window,
9166 cx: &mut Context<Self>,
9167 ) -> Result<()> {
9168 fn select_next_match_ranges(
9169 this: &mut Editor,
9170 range: Range<usize>,
9171 replace_newest: bool,
9172 auto_scroll: Option<Autoscroll>,
9173 window: &mut Window,
9174 cx: &mut Context<Editor>,
9175 ) {
9176 this.unfold_ranges(&[range.clone()], false, true, cx);
9177 this.change_selections(auto_scroll, window, cx, |s| {
9178 if replace_newest {
9179 s.delete(s.newest_anchor().id);
9180 }
9181 s.insert_range(range.clone());
9182 });
9183 }
9184
9185 let buffer = &display_map.buffer_snapshot;
9186 let mut selections = self.selections.all::<usize>(cx);
9187 if let Some(mut select_next_state) = self.select_next_state.take() {
9188 let query = &select_next_state.query;
9189 if !select_next_state.done {
9190 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
9191 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
9192 let mut next_selected_range = None;
9193
9194 let bytes_after_last_selection =
9195 buffer.bytes_in_range(last_selection.end..buffer.len());
9196 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
9197 let query_matches = query
9198 .stream_find_iter(bytes_after_last_selection)
9199 .map(|result| (last_selection.end, result))
9200 .chain(
9201 query
9202 .stream_find_iter(bytes_before_first_selection)
9203 .map(|result| (0, result)),
9204 );
9205
9206 for (start_offset, query_match) in query_matches {
9207 let query_match = query_match.unwrap(); // can only fail due to I/O
9208 let offset_range =
9209 start_offset + query_match.start()..start_offset + query_match.end();
9210 let display_range = offset_range.start.to_display_point(display_map)
9211 ..offset_range.end.to_display_point(display_map);
9212
9213 if !select_next_state.wordwise
9214 || (!movement::is_inside_word(display_map, display_range.start)
9215 && !movement::is_inside_word(display_map, display_range.end))
9216 {
9217 // TODO: This is n^2, because we might check all the selections
9218 if !selections
9219 .iter()
9220 .any(|selection| selection.range().overlaps(&offset_range))
9221 {
9222 next_selected_range = Some(offset_range);
9223 break;
9224 }
9225 }
9226 }
9227
9228 if let Some(next_selected_range) = next_selected_range {
9229 select_next_match_ranges(
9230 self,
9231 next_selected_range,
9232 replace_newest,
9233 autoscroll,
9234 window,
9235 cx,
9236 );
9237 } else {
9238 select_next_state.done = true;
9239 }
9240 }
9241
9242 self.select_next_state = Some(select_next_state);
9243 } else {
9244 let mut only_carets = true;
9245 let mut same_text_selected = true;
9246 let mut selected_text = None;
9247
9248 let mut selections_iter = selections.iter().peekable();
9249 while let Some(selection) = selections_iter.next() {
9250 if selection.start != selection.end {
9251 only_carets = false;
9252 }
9253
9254 if same_text_selected {
9255 if selected_text.is_none() {
9256 selected_text =
9257 Some(buffer.text_for_range(selection.range()).collect::<String>());
9258 }
9259
9260 if let Some(next_selection) = selections_iter.peek() {
9261 if next_selection.range().len() == selection.range().len() {
9262 let next_selected_text = buffer
9263 .text_for_range(next_selection.range())
9264 .collect::<String>();
9265 if Some(next_selected_text) != selected_text {
9266 same_text_selected = false;
9267 selected_text = None;
9268 }
9269 } else {
9270 same_text_selected = false;
9271 selected_text = None;
9272 }
9273 }
9274 }
9275 }
9276
9277 if only_carets {
9278 for selection in &mut selections {
9279 let word_range = movement::surrounding_word(
9280 display_map,
9281 selection.start.to_display_point(display_map),
9282 );
9283 selection.start = word_range.start.to_offset(display_map, Bias::Left);
9284 selection.end = word_range.end.to_offset(display_map, Bias::Left);
9285 selection.goal = SelectionGoal::None;
9286 selection.reversed = false;
9287 select_next_match_ranges(
9288 self,
9289 selection.start..selection.end,
9290 replace_newest,
9291 autoscroll,
9292 window,
9293 cx,
9294 );
9295 }
9296
9297 if selections.len() == 1 {
9298 let selection = selections
9299 .last()
9300 .expect("ensured that there's only one selection");
9301 let query = buffer
9302 .text_for_range(selection.start..selection.end)
9303 .collect::<String>();
9304 let is_empty = query.is_empty();
9305 let select_state = SelectNextState {
9306 query: AhoCorasick::new(&[query])?,
9307 wordwise: true,
9308 done: is_empty,
9309 };
9310 self.select_next_state = Some(select_state);
9311 } else {
9312 self.select_next_state = None;
9313 }
9314 } else if let Some(selected_text) = selected_text {
9315 self.select_next_state = Some(SelectNextState {
9316 query: AhoCorasick::new(&[selected_text])?,
9317 wordwise: false,
9318 done: false,
9319 });
9320 self.select_next_match_internal(
9321 display_map,
9322 replace_newest,
9323 autoscroll,
9324 window,
9325 cx,
9326 )?;
9327 }
9328 }
9329 Ok(())
9330 }
9331
9332 pub fn select_all_matches(
9333 &mut self,
9334 _action: &SelectAllMatches,
9335 window: &mut Window,
9336 cx: &mut Context<Self>,
9337 ) -> Result<()> {
9338 self.push_to_selection_history();
9339 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9340
9341 self.select_next_match_internal(&display_map, false, None, window, cx)?;
9342 let Some(select_next_state) = self.select_next_state.as_mut() else {
9343 return Ok(());
9344 };
9345 if select_next_state.done {
9346 return Ok(());
9347 }
9348
9349 let mut new_selections = self.selections.all::<usize>(cx);
9350
9351 let buffer = &display_map.buffer_snapshot;
9352 let query_matches = select_next_state
9353 .query
9354 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
9355
9356 for query_match in query_matches {
9357 let query_match = query_match.unwrap(); // can only fail due to I/O
9358 let offset_range = query_match.start()..query_match.end();
9359 let display_range = offset_range.start.to_display_point(&display_map)
9360 ..offset_range.end.to_display_point(&display_map);
9361
9362 if !select_next_state.wordwise
9363 || (!movement::is_inside_word(&display_map, display_range.start)
9364 && !movement::is_inside_word(&display_map, display_range.end))
9365 {
9366 self.selections.change_with(cx, |selections| {
9367 new_selections.push(Selection {
9368 id: selections.new_selection_id(),
9369 start: offset_range.start,
9370 end: offset_range.end,
9371 reversed: false,
9372 goal: SelectionGoal::None,
9373 });
9374 });
9375 }
9376 }
9377
9378 new_selections.sort_by_key(|selection| selection.start);
9379 let mut ix = 0;
9380 while ix + 1 < new_selections.len() {
9381 let current_selection = &new_selections[ix];
9382 let next_selection = &new_selections[ix + 1];
9383 if current_selection.range().overlaps(&next_selection.range()) {
9384 if current_selection.id < next_selection.id {
9385 new_selections.remove(ix + 1);
9386 } else {
9387 new_selections.remove(ix);
9388 }
9389 } else {
9390 ix += 1;
9391 }
9392 }
9393
9394 let reversed = self.selections.oldest::<usize>(cx).reversed;
9395
9396 for selection in new_selections.iter_mut() {
9397 selection.reversed = reversed;
9398 }
9399
9400 select_next_state.done = true;
9401 self.unfold_ranges(
9402 &new_selections
9403 .iter()
9404 .map(|selection| selection.range())
9405 .collect::<Vec<_>>(),
9406 false,
9407 false,
9408 cx,
9409 );
9410 self.change_selections(Some(Autoscroll::fit()), window, cx, |selections| {
9411 selections.select(new_selections)
9412 });
9413
9414 Ok(())
9415 }
9416
9417 pub fn select_next(
9418 &mut self,
9419 action: &SelectNext,
9420 window: &mut Window,
9421 cx: &mut Context<Self>,
9422 ) -> Result<()> {
9423 self.push_to_selection_history();
9424 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9425 self.select_next_match_internal(
9426 &display_map,
9427 action.replace_newest,
9428 Some(Autoscroll::newest()),
9429 window,
9430 cx,
9431 )?;
9432 Ok(())
9433 }
9434
9435 pub fn select_previous(
9436 &mut self,
9437 action: &SelectPrevious,
9438 window: &mut Window,
9439 cx: &mut Context<Self>,
9440 ) -> Result<()> {
9441 self.push_to_selection_history();
9442 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9443 let buffer = &display_map.buffer_snapshot;
9444 let mut selections = self.selections.all::<usize>(cx);
9445 if let Some(mut select_prev_state) = self.select_prev_state.take() {
9446 let query = &select_prev_state.query;
9447 if !select_prev_state.done {
9448 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
9449 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
9450 let mut next_selected_range = None;
9451 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
9452 let bytes_before_last_selection =
9453 buffer.reversed_bytes_in_range(0..last_selection.start);
9454 let bytes_after_first_selection =
9455 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
9456 let query_matches = query
9457 .stream_find_iter(bytes_before_last_selection)
9458 .map(|result| (last_selection.start, result))
9459 .chain(
9460 query
9461 .stream_find_iter(bytes_after_first_selection)
9462 .map(|result| (buffer.len(), result)),
9463 );
9464 for (end_offset, query_match) in query_matches {
9465 let query_match = query_match.unwrap(); // can only fail due to I/O
9466 let offset_range =
9467 end_offset - query_match.end()..end_offset - query_match.start();
9468 let display_range = offset_range.start.to_display_point(&display_map)
9469 ..offset_range.end.to_display_point(&display_map);
9470
9471 if !select_prev_state.wordwise
9472 || (!movement::is_inside_word(&display_map, display_range.start)
9473 && !movement::is_inside_word(&display_map, display_range.end))
9474 {
9475 next_selected_range = Some(offset_range);
9476 break;
9477 }
9478 }
9479
9480 if let Some(next_selected_range) = next_selected_range {
9481 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
9482 self.change_selections(Some(Autoscroll::newest()), window, cx, |s| {
9483 if action.replace_newest {
9484 s.delete(s.newest_anchor().id);
9485 }
9486 s.insert_range(next_selected_range);
9487 });
9488 } else {
9489 select_prev_state.done = true;
9490 }
9491 }
9492
9493 self.select_prev_state = Some(select_prev_state);
9494 } else {
9495 let mut only_carets = true;
9496 let mut same_text_selected = true;
9497 let mut selected_text = None;
9498
9499 let mut selections_iter = selections.iter().peekable();
9500 while let Some(selection) = selections_iter.next() {
9501 if selection.start != selection.end {
9502 only_carets = false;
9503 }
9504
9505 if same_text_selected {
9506 if selected_text.is_none() {
9507 selected_text =
9508 Some(buffer.text_for_range(selection.range()).collect::<String>());
9509 }
9510
9511 if let Some(next_selection) = selections_iter.peek() {
9512 if next_selection.range().len() == selection.range().len() {
9513 let next_selected_text = buffer
9514 .text_for_range(next_selection.range())
9515 .collect::<String>();
9516 if Some(next_selected_text) != selected_text {
9517 same_text_selected = false;
9518 selected_text = None;
9519 }
9520 } else {
9521 same_text_selected = false;
9522 selected_text = None;
9523 }
9524 }
9525 }
9526 }
9527
9528 if only_carets {
9529 for selection in &mut selections {
9530 let word_range = movement::surrounding_word(
9531 &display_map,
9532 selection.start.to_display_point(&display_map),
9533 );
9534 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
9535 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
9536 selection.goal = SelectionGoal::None;
9537 selection.reversed = false;
9538 }
9539 if selections.len() == 1 {
9540 let selection = selections
9541 .last()
9542 .expect("ensured that there's only one selection");
9543 let query = buffer
9544 .text_for_range(selection.start..selection.end)
9545 .collect::<String>();
9546 let is_empty = query.is_empty();
9547 let select_state = SelectNextState {
9548 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
9549 wordwise: true,
9550 done: is_empty,
9551 };
9552 self.select_prev_state = Some(select_state);
9553 } else {
9554 self.select_prev_state = None;
9555 }
9556
9557 self.unfold_ranges(
9558 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
9559 false,
9560 true,
9561 cx,
9562 );
9563 self.change_selections(Some(Autoscroll::newest()), window, cx, |s| {
9564 s.select(selections);
9565 });
9566 } else if let Some(selected_text) = selected_text {
9567 self.select_prev_state = Some(SelectNextState {
9568 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
9569 wordwise: false,
9570 done: false,
9571 });
9572 self.select_previous(action, window, cx)?;
9573 }
9574 }
9575 Ok(())
9576 }
9577
9578 pub fn toggle_comments(
9579 &mut self,
9580 action: &ToggleComments,
9581 window: &mut Window,
9582 cx: &mut Context<Self>,
9583 ) {
9584 if self.read_only(cx) {
9585 return;
9586 }
9587 let text_layout_details = &self.text_layout_details(window);
9588 self.transact(window, cx, |this, window, cx| {
9589 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
9590 let mut edits = Vec::new();
9591 let mut selection_edit_ranges = Vec::new();
9592 let mut last_toggled_row = None;
9593 let snapshot = this.buffer.read(cx).read(cx);
9594 let empty_str: Arc<str> = Arc::default();
9595 let mut suffixes_inserted = Vec::new();
9596 let ignore_indent = action.ignore_indent;
9597
9598 fn comment_prefix_range(
9599 snapshot: &MultiBufferSnapshot,
9600 row: MultiBufferRow,
9601 comment_prefix: &str,
9602 comment_prefix_whitespace: &str,
9603 ignore_indent: bool,
9604 ) -> Range<Point> {
9605 let indent_size = if ignore_indent {
9606 0
9607 } else {
9608 snapshot.indent_size_for_line(row).len
9609 };
9610
9611 let start = Point::new(row.0, indent_size);
9612
9613 let mut line_bytes = snapshot
9614 .bytes_in_range(start..snapshot.max_point())
9615 .flatten()
9616 .copied();
9617
9618 // If this line currently begins with the line comment prefix, then record
9619 // the range containing the prefix.
9620 if line_bytes
9621 .by_ref()
9622 .take(comment_prefix.len())
9623 .eq(comment_prefix.bytes())
9624 {
9625 // Include any whitespace that matches the comment prefix.
9626 let matching_whitespace_len = line_bytes
9627 .zip(comment_prefix_whitespace.bytes())
9628 .take_while(|(a, b)| a == b)
9629 .count() as u32;
9630 let end = Point::new(
9631 start.row,
9632 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
9633 );
9634 start..end
9635 } else {
9636 start..start
9637 }
9638 }
9639
9640 fn comment_suffix_range(
9641 snapshot: &MultiBufferSnapshot,
9642 row: MultiBufferRow,
9643 comment_suffix: &str,
9644 comment_suffix_has_leading_space: bool,
9645 ) -> Range<Point> {
9646 let end = Point::new(row.0, snapshot.line_len(row));
9647 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9648
9649 let mut line_end_bytes = snapshot
9650 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9651 .flatten()
9652 .copied();
9653
9654 let leading_space_len = if suffix_start_column > 0
9655 && line_end_bytes.next() == Some(b' ')
9656 && comment_suffix_has_leading_space
9657 {
9658 1
9659 } else {
9660 0
9661 };
9662
9663 // If this line currently begins with the line comment prefix, then record
9664 // the range containing the prefix.
9665 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9666 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9667 start..end
9668 } else {
9669 end..end
9670 }
9671 }
9672
9673 // TODO: Handle selections that cross excerpts
9674 for selection in &mut selections {
9675 let start_column = snapshot
9676 .indent_size_for_line(MultiBufferRow(selection.start.row))
9677 .len;
9678 let language = if let Some(language) =
9679 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9680 {
9681 language
9682 } else {
9683 continue;
9684 };
9685
9686 selection_edit_ranges.clear();
9687
9688 // If multiple selections contain a given row, avoid processing that
9689 // row more than once.
9690 let mut start_row = MultiBufferRow(selection.start.row);
9691 if last_toggled_row == Some(start_row) {
9692 start_row = start_row.next_row();
9693 }
9694 let end_row =
9695 if selection.end.row > selection.start.row && selection.end.column == 0 {
9696 MultiBufferRow(selection.end.row - 1)
9697 } else {
9698 MultiBufferRow(selection.end.row)
9699 };
9700 last_toggled_row = Some(end_row);
9701
9702 if start_row > end_row {
9703 continue;
9704 }
9705
9706 // If the language has line comments, toggle those.
9707 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9708
9709 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9710 if ignore_indent {
9711 full_comment_prefixes = full_comment_prefixes
9712 .into_iter()
9713 .map(|s| Arc::from(s.trim_end()))
9714 .collect();
9715 }
9716
9717 if !full_comment_prefixes.is_empty() {
9718 let first_prefix = full_comment_prefixes
9719 .first()
9720 .expect("prefixes is non-empty");
9721 let prefix_trimmed_lengths = full_comment_prefixes
9722 .iter()
9723 .map(|p| p.trim_end_matches(' ').len())
9724 .collect::<SmallVec<[usize; 4]>>();
9725
9726 let mut all_selection_lines_are_comments = true;
9727
9728 for row in start_row.0..=end_row.0 {
9729 let row = MultiBufferRow(row);
9730 if start_row < end_row && snapshot.is_line_blank(row) {
9731 continue;
9732 }
9733
9734 let prefix_range = full_comment_prefixes
9735 .iter()
9736 .zip(prefix_trimmed_lengths.iter().copied())
9737 .map(|(prefix, trimmed_prefix_len)| {
9738 comment_prefix_range(
9739 snapshot.deref(),
9740 row,
9741 &prefix[..trimmed_prefix_len],
9742 &prefix[trimmed_prefix_len..],
9743 ignore_indent,
9744 )
9745 })
9746 .max_by_key(|range| range.end.column - range.start.column)
9747 .expect("prefixes is non-empty");
9748
9749 if prefix_range.is_empty() {
9750 all_selection_lines_are_comments = false;
9751 }
9752
9753 selection_edit_ranges.push(prefix_range);
9754 }
9755
9756 if all_selection_lines_are_comments {
9757 edits.extend(
9758 selection_edit_ranges
9759 .iter()
9760 .cloned()
9761 .map(|range| (range, empty_str.clone())),
9762 );
9763 } else {
9764 let min_column = selection_edit_ranges
9765 .iter()
9766 .map(|range| range.start.column)
9767 .min()
9768 .unwrap_or(0);
9769 edits.extend(selection_edit_ranges.iter().map(|range| {
9770 let position = Point::new(range.start.row, min_column);
9771 (position..position, first_prefix.clone())
9772 }));
9773 }
9774 } else if let Some((full_comment_prefix, comment_suffix)) =
9775 language.block_comment_delimiters()
9776 {
9777 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9778 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9779 let prefix_range = comment_prefix_range(
9780 snapshot.deref(),
9781 start_row,
9782 comment_prefix,
9783 comment_prefix_whitespace,
9784 ignore_indent,
9785 );
9786 let suffix_range = comment_suffix_range(
9787 snapshot.deref(),
9788 end_row,
9789 comment_suffix.trim_start_matches(' '),
9790 comment_suffix.starts_with(' '),
9791 );
9792
9793 if prefix_range.is_empty() || suffix_range.is_empty() {
9794 edits.push((
9795 prefix_range.start..prefix_range.start,
9796 full_comment_prefix.clone(),
9797 ));
9798 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9799 suffixes_inserted.push((end_row, comment_suffix.len()));
9800 } else {
9801 edits.push((prefix_range, empty_str.clone()));
9802 edits.push((suffix_range, empty_str.clone()));
9803 }
9804 } else {
9805 continue;
9806 }
9807 }
9808
9809 drop(snapshot);
9810 this.buffer.update(cx, |buffer, cx| {
9811 buffer.edit(edits, None, cx);
9812 });
9813
9814 // Adjust selections so that they end before any comment suffixes that
9815 // were inserted.
9816 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9817 let mut selections = this.selections.all::<Point>(cx);
9818 let snapshot = this.buffer.read(cx).read(cx);
9819 for selection in &mut selections {
9820 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9821 match row.cmp(&MultiBufferRow(selection.end.row)) {
9822 Ordering::Less => {
9823 suffixes_inserted.next();
9824 continue;
9825 }
9826 Ordering::Greater => break,
9827 Ordering::Equal => {
9828 if selection.end.column == snapshot.line_len(row) {
9829 if selection.is_empty() {
9830 selection.start.column -= suffix_len as u32;
9831 }
9832 selection.end.column -= suffix_len as u32;
9833 }
9834 break;
9835 }
9836 }
9837 }
9838 }
9839
9840 drop(snapshot);
9841 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9842 s.select(selections)
9843 });
9844
9845 let selections = this.selections.all::<Point>(cx);
9846 let selections_on_single_row = selections.windows(2).all(|selections| {
9847 selections[0].start.row == selections[1].start.row
9848 && selections[0].end.row == selections[1].end.row
9849 && selections[0].start.row == selections[0].end.row
9850 });
9851 let selections_selecting = selections
9852 .iter()
9853 .any(|selection| selection.start != selection.end);
9854 let advance_downwards = action.advance_downwards
9855 && selections_on_single_row
9856 && !selections_selecting
9857 && !matches!(this.mode, EditorMode::SingleLine { .. });
9858
9859 if advance_downwards {
9860 let snapshot = this.buffer.read(cx).snapshot(cx);
9861
9862 this.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9863 s.move_cursors_with(|display_snapshot, display_point, _| {
9864 let mut point = display_point.to_point(display_snapshot);
9865 point.row += 1;
9866 point = snapshot.clip_point(point, Bias::Left);
9867 let display_point = point.to_display_point(display_snapshot);
9868 let goal = SelectionGoal::HorizontalPosition(
9869 display_snapshot
9870 .x_for_display_point(display_point, text_layout_details)
9871 .into(),
9872 );
9873 (display_point, goal)
9874 })
9875 });
9876 }
9877 });
9878 }
9879
9880 pub fn select_enclosing_symbol(
9881 &mut self,
9882 _: &SelectEnclosingSymbol,
9883 window: &mut Window,
9884 cx: &mut Context<Self>,
9885 ) {
9886 let buffer = self.buffer.read(cx).snapshot(cx);
9887 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9888
9889 fn update_selection(
9890 selection: &Selection<usize>,
9891 buffer_snap: &MultiBufferSnapshot,
9892 ) -> Option<Selection<usize>> {
9893 let cursor = selection.head();
9894 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9895 for symbol in symbols.iter().rev() {
9896 let start = symbol.range.start.to_offset(buffer_snap);
9897 let end = symbol.range.end.to_offset(buffer_snap);
9898 let new_range = start..end;
9899 if start < selection.start || end > selection.end {
9900 return Some(Selection {
9901 id: selection.id,
9902 start: new_range.start,
9903 end: new_range.end,
9904 goal: SelectionGoal::None,
9905 reversed: selection.reversed,
9906 });
9907 }
9908 }
9909 None
9910 }
9911
9912 let mut selected_larger_symbol = false;
9913 let new_selections = old_selections
9914 .iter()
9915 .map(|selection| match update_selection(selection, &buffer) {
9916 Some(new_selection) => {
9917 if new_selection.range() != selection.range() {
9918 selected_larger_symbol = true;
9919 }
9920 new_selection
9921 }
9922 None => selection.clone(),
9923 })
9924 .collect::<Vec<_>>();
9925
9926 if selected_larger_symbol {
9927 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9928 s.select(new_selections);
9929 });
9930 }
9931 }
9932
9933 pub fn select_larger_syntax_node(
9934 &mut self,
9935 _: &SelectLargerSyntaxNode,
9936 window: &mut Window,
9937 cx: &mut Context<Self>,
9938 ) {
9939 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9940 let buffer = self.buffer.read(cx).snapshot(cx);
9941 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9942
9943 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9944 let mut selected_larger_node = false;
9945 let new_selections = old_selections
9946 .iter()
9947 .map(|selection| {
9948 let old_range = selection.start..selection.end;
9949 let mut new_range = old_range.clone();
9950 let mut new_node = None;
9951 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
9952 {
9953 new_node = Some(node);
9954 new_range = containing_range;
9955 if !display_map.intersects_fold(new_range.start)
9956 && !display_map.intersects_fold(new_range.end)
9957 {
9958 break;
9959 }
9960 }
9961
9962 if let Some(node) = new_node {
9963 // Log the ancestor, to support using this action as a way to explore TreeSitter
9964 // nodes. Parent and grandparent are also logged because this operation will not
9965 // visit nodes that have the same range as their parent.
9966 log::info!("Node: {node:?}");
9967 let parent = node.parent();
9968 log::info!("Parent: {parent:?}");
9969 let grandparent = parent.and_then(|x| x.parent());
9970 log::info!("Grandparent: {grandparent:?}");
9971 }
9972
9973 selected_larger_node |= new_range != old_range;
9974 Selection {
9975 id: selection.id,
9976 start: new_range.start,
9977 end: new_range.end,
9978 goal: SelectionGoal::None,
9979 reversed: selection.reversed,
9980 }
9981 })
9982 .collect::<Vec<_>>();
9983
9984 if selected_larger_node {
9985 stack.push(old_selections);
9986 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
9987 s.select(new_selections);
9988 });
9989 }
9990 self.select_larger_syntax_node_stack = stack;
9991 }
9992
9993 pub fn select_smaller_syntax_node(
9994 &mut self,
9995 _: &SelectSmallerSyntaxNode,
9996 window: &mut Window,
9997 cx: &mut Context<Self>,
9998 ) {
9999 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
10000 if let Some(selections) = stack.pop() {
10001 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10002 s.select(selections.to_vec());
10003 });
10004 }
10005 self.select_larger_syntax_node_stack = stack;
10006 }
10007
10008 fn refresh_runnables(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Task<()> {
10009 if !EditorSettings::get_global(cx).gutter.runnables {
10010 self.clear_tasks();
10011 return Task::ready(());
10012 }
10013 let project = self.project.as_ref().map(Entity::downgrade);
10014 cx.spawn_in(window, |this, mut cx| async move {
10015 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
10016 let Some(project) = project.and_then(|p| p.upgrade()) else {
10017 return;
10018 };
10019 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
10020 this.display_map.update(cx, |map, cx| map.snapshot(cx))
10021 }) else {
10022 return;
10023 };
10024
10025 let hide_runnables = project
10026 .update(&mut cx, |project, cx| {
10027 // Do not display any test indicators in non-dev server remote projects.
10028 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
10029 })
10030 .unwrap_or(true);
10031 if hide_runnables {
10032 return;
10033 }
10034 let new_rows =
10035 cx.background_executor()
10036 .spawn({
10037 let snapshot = display_snapshot.clone();
10038 async move {
10039 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
10040 }
10041 })
10042 .await;
10043
10044 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
10045 this.update(&mut cx, |this, _| {
10046 this.clear_tasks();
10047 for (key, value) in rows {
10048 this.insert_tasks(key, value);
10049 }
10050 })
10051 .ok();
10052 })
10053 }
10054 fn fetch_runnable_ranges(
10055 snapshot: &DisplaySnapshot,
10056 range: Range<Anchor>,
10057 ) -> Vec<language::RunnableRange> {
10058 snapshot.buffer_snapshot.runnable_ranges(range).collect()
10059 }
10060
10061 fn runnable_rows(
10062 project: Entity<Project>,
10063 snapshot: DisplaySnapshot,
10064 runnable_ranges: Vec<RunnableRange>,
10065 mut cx: AsyncWindowContext,
10066 ) -> Vec<((BufferId, u32), RunnableTasks)> {
10067 runnable_ranges
10068 .into_iter()
10069 .filter_map(|mut runnable| {
10070 let tasks = cx
10071 .update(|_, cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
10072 .ok()?;
10073 if tasks.is_empty() {
10074 return None;
10075 }
10076
10077 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
10078
10079 let row = snapshot
10080 .buffer_snapshot
10081 .buffer_line_for_row(MultiBufferRow(point.row))?
10082 .1
10083 .start
10084 .row;
10085
10086 let context_range =
10087 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
10088 Some((
10089 (runnable.buffer_id, row),
10090 RunnableTasks {
10091 templates: tasks,
10092 offset: MultiBufferOffset(runnable.run_range.start),
10093 context_range,
10094 column: point.column,
10095 extra_variables: runnable.extra_captures,
10096 },
10097 ))
10098 })
10099 .collect()
10100 }
10101
10102 fn templates_with_tags(
10103 project: &Entity<Project>,
10104 runnable: &mut Runnable,
10105 cx: &mut App,
10106 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
10107 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
10108 let (worktree_id, file) = project
10109 .buffer_for_id(runnable.buffer, cx)
10110 .and_then(|buffer| buffer.read(cx).file())
10111 .map(|file| (file.worktree_id(cx), file.clone()))
10112 .unzip();
10113
10114 (
10115 project.task_store().read(cx).task_inventory().cloned(),
10116 worktree_id,
10117 file,
10118 )
10119 });
10120
10121 let tags = mem::take(&mut runnable.tags);
10122 let mut tags: Vec<_> = tags
10123 .into_iter()
10124 .flat_map(|tag| {
10125 let tag = tag.0.clone();
10126 inventory
10127 .as_ref()
10128 .into_iter()
10129 .flat_map(|inventory| {
10130 inventory.read(cx).list_tasks(
10131 file.clone(),
10132 Some(runnable.language.clone()),
10133 worktree_id,
10134 cx,
10135 )
10136 })
10137 .filter(move |(_, template)| {
10138 template.tags.iter().any(|source_tag| source_tag == &tag)
10139 })
10140 })
10141 .sorted_by_key(|(kind, _)| kind.to_owned())
10142 .collect();
10143 if let Some((leading_tag_source, _)) = tags.first() {
10144 // Strongest source wins; if we have worktree tag binding, prefer that to
10145 // global and language bindings;
10146 // if we have a global binding, prefer that to language binding.
10147 let first_mismatch = tags
10148 .iter()
10149 .position(|(tag_source, _)| tag_source != leading_tag_source);
10150 if let Some(index) = first_mismatch {
10151 tags.truncate(index);
10152 }
10153 }
10154
10155 tags
10156 }
10157
10158 pub fn move_to_enclosing_bracket(
10159 &mut self,
10160 _: &MoveToEnclosingBracket,
10161 window: &mut Window,
10162 cx: &mut Context<Self>,
10163 ) {
10164 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10165 s.move_offsets_with(|snapshot, selection| {
10166 let Some(enclosing_bracket_ranges) =
10167 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
10168 else {
10169 return;
10170 };
10171
10172 let mut best_length = usize::MAX;
10173 let mut best_inside = false;
10174 let mut best_in_bracket_range = false;
10175 let mut best_destination = None;
10176 for (open, close) in enclosing_bracket_ranges {
10177 let close = close.to_inclusive();
10178 let length = close.end() - open.start;
10179 let inside = selection.start >= open.end && selection.end <= *close.start();
10180 let in_bracket_range = open.to_inclusive().contains(&selection.head())
10181 || close.contains(&selection.head());
10182
10183 // If best is next to a bracket and current isn't, skip
10184 if !in_bracket_range && best_in_bracket_range {
10185 continue;
10186 }
10187
10188 // Prefer smaller lengths unless best is inside and current isn't
10189 if length > best_length && (best_inside || !inside) {
10190 continue;
10191 }
10192
10193 best_length = length;
10194 best_inside = inside;
10195 best_in_bracket_range = in_bracket_range;
10196 best_destination = Some(
10197 if close.contains(&selection.start) && close.contains(&selection.end) {
10198 if inside {
10199 open.end
10200 } else {
10201 open.start
10202 }
10203 } else if inside {
10204 *close.start()
10205 } else {
10206 *close.end()
10207 },
10208 );
10209 }
10210
10211 if let Some(destination) = best_destination {
10212 selection.collapse_to(destination, SelectionGoal::None);
10213 }
10214 })
10215 });
10216 }
10217
10218 pub fn undo_selection(
10219 &mut self,
10220 _: &UndoSelection,
10221 window: &mut Window,
10222 cx: &mut Context<Self>,
10223 ) {
10224 self.end_selection(window, cx);
10225 self.selection_history.mode = SelectionHistoryMode::Undoing;
10226 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
10227 self.change_selections(None, window, cx, |s| {
10228 s.select_anchors(entry.selections.to_vec())
10229 });
10230 self.select_next_state = entry.select_next_state;
10231 self.select_prev_state = entry.select_prev_state;
10232 self.add_selections_state = entry.add_selections_state;
10233 self.request_autoscroll(Autoscroll::newest(), cx);
10234 }
10235 self.selection_history.mode = SelectionHistoryMode::Normal;
10236 }
10237
10238 pub fn redo_selection(
10239 &mut self,
10240 _: &RedoSelection,
10241 window: &mut Window,
10242 cx: &mut Context<Self>,
10243 ) {
10244 self.end_selection(window, cx);
10245 self.selection_history.mode = SelectionHistoryMode::Redoing;
10246 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
10247 self.change_selections(None, window, cx, |s| {
10248 s.select_anchors(entry.selections.to_vec())
10249 });
10250 self.select_next_state = entry.select_next_state;
10251 self.select_prev_state = entry.select_prev_state;
10252 self.add_selections_state = entry.add_selections_state;
10253 self.request_autoscroll(Autoscroll::newest(), cx);
10254 }
10255 self.selection_history.mode = SelectionHistoryMode::Normal;
10256 }
10257
10258 pub fn expand_excerpts(
10259 &mut self,
10260 action: &ExpandExcerpts,
10261 _: &mut Window,
10262 cx: &mut Context<Self>,
10263 ) {
10264 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
10265 }
10266
10267 pub fn expand_excerpts_down(
10268 &mut self,
10269 action: &ExpandExcerptsDown,
10270 _: &mut Window,
10271 cx: &mut Context<Self>,
10272 ) {
10273 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
10274 }
10275
10276 pub fn expand_excerpts_up(
10277 &mut self,
10278 action: &ExpandExcerptsUp,
10279 _: &mut Window,
10280 cx: &mut Context<Self>,
10281 ) {
10282 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
10283 }
10284
10285 pub fn expand_excerpts_for_direction(
10286 &mut self,
10287 lines: u32,
10288 direction: ExpandExcerptDirection,
10289
10290 cx: &mut Context<Self>,
10291 ) {
10292 let selections = self.selections.disjoint_anchors();
10293
10294 let lines = if lines == 0 {
10295 EditorSettings::get_global(cx).expand_excerpt_lines
10296 } else {
10297 lines
10298 };
10299
10300 self.buffer.update(cx, |buffer, cx| {
10301 let snapshot = buffer.snapshot(cx);
10302 let mut excerpt_ids = selections
10303 .iter()
10304 .flat_map(|selection| snapshot.excerpt_ids_for_range(selection.range()))
10305 .collect::<Vec<_>>();
10306 excerpt_ids.sort();
10307 excerpt_ids.dedup();
10308 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
10309 })
10310 }
10311
10312 pub fn expand_excerpt(
10313 &mut self,
10314 excerpt: ExcerptId,
10315 direction: ExpandExcerptDirection,
10316 cx: &mut Context<Self>,
10317 ) {
10318 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
10319 self.buffer.update(cx, |buffer, cx| {
10320 buffer.expand_excerpts([excerpt], lines, direction, cx)
10321 })
10322 }
10323
10324 pub fn go_to_singleton_buffer_point(
10325 &mut self,
10326 point: Point,
10327 window: &mut Window,
10328 cx: &mut Context<Self>,
10329 ) {
10330 self.go_to_singleton_buffer_range(point..point, window, cx);
10331 }
10332
10333 pub fn go_to_singleton_buffer_range(
10334 &mut self,
10335 range: Range<Point>,
10336 window: &mut Window,
10337 cx: &mut Context<Self>,
10338 ) {
10339 let multibuffer = self.buffer().read(cx);
10340 let Some(buffer) = multibuffer.as_singleton() else {
10341 return;
10342 };
10343 let Some(start) = multibuffer.buffer_point_to_anchor(&buffer, range.start, cx) else {
10344 return;
10345 };
10346 let Some(end) = multibuffer.buffer_point_to_anchor(&buffer, range.end, cx) else {
10347 return;
10348 };
10349 self.change_selections(Some(Autoscroll::center()), window, cx, |s| {
10350 s.select_anchor_ranges([start..end])
10351 });
10352 }
10353
10354 fn go_to_diagnostic(
10355 &mut self,
10356 _: &GoToDiagnostic,
10357 window: &mut Window,
10358 cx: &mut Context<Self>,
10359 ) {
10360 self.go_to_diagnostic_impl(Direction::Next, window, cx)
10361 }
10362
10363 fn go_to_prev_diagnostic(
10364 &mut self,
10365 _: &GoToPrevDiagnostic,
10366 window: &mut Window,
10367 cx: &mut Context<Self>,
10368 ) {
10369 self.go_to_diagnostic_impl(Direction::Prev, window, cx)
10370 }
10371
10372 pub fn go_to_diagnostic_impl(
10373 &mut self,
10374 direction: Direction,
10375 window: &mut Window,
10376 cx: &mut Context<Self>,
10377 ) {
10378 let buffer = self.buffer.read(cx).snapshot(cx);
10379 let selection = self.selections.newest::<usize>(cx);
10380
10381 // If there is an active Diagnostic Popover jump to its diagnostic instead.
10382 if direction == Direction::Next {
10383 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
10384 let Some(buffer_id) = popover.local_diagnostic.range.start.buffer_id else {
10385 return;
10386 };
10387 self.activate_diagnostics(
10388 buffer_id,
10389 popover.local_diagnostic.diagnostic.group_id,
10390 window,
10391 cx,
10392 );
10393 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
10394 let primary_range_start = active_diagnostics.primary_range.start;
10395 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10396 let mut new_selection = s.newest_anchor().clone();
10397 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
10398 s.select_anchors(vec![new_selection.clone()]);
10399 });
10400 self.refresh_inline_completion(false, true, window, cx);
10401 }
10402 return;
10403 }
10404 }
10405
10406 let active_group_id = self
10407 .active_diagnostics
10408 .as_ref()
10409 .map(|active_group| active_group.group_id);
10410 let active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
10411 active_diagnostics
10412 .primary_range
10413 .to_offset(&buffer)
10414 .to_inclusive()
10415 });
10416 let search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
10417 if active_primary_range.contains(&selection.head()) {
10418 *active_primary_range.start()
10419 } else {
10420 selection.head()
10421 }
10422 } else {
10423 selection.head()
10424 };
10425
10426 let snapshot = self.snapshot(window, cx);
10427 let primary_diagnostics_before = buffer
10428 .diagnostics_in_range::<usize>(0..search_start)
10429 .filter(|entry| entry.diagnostic.is_primary)
10430 .filter(|entry| entry.range.start != entry.range.end)
10431 .filter(|entry| entry.diagnostic.severity <= DiagnosticSeverity::WARNING)
10432 .filter(|entry| !snapshot.intersects_fold(entry.range.start))
10433 .collect::<Vec<_>>();
10434 let last_same_group_diagnostic_before = active_group_id.and_then(|active_group_id| {
10435 primary_diagnostics_before
10436 .iter()
10437 .position(|entry| entry.diagnostic.group_id == active_group_id)
10438 });
10439
10440 let primary_diagnostics_after = buffer
10441 .diagnostics_in_range::<usize>(search_start..buffer.len())
10442 .filter(|entry| entry.diagnostic.is_primary)
10443 .filter(|entry| entry.range.start != entry.range.end)
10444 .filter(|entry| entry.diagnostic.severity <= DiagnosticSeverity::WARNING)
10445 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start))
10446 .collect::<Vec<_>>();
10447 let last_same_group_diagnostic_after = active_group_id.and_then(|active_group_id| {
10448 primary_diagnostics_after
10449 .iter()
10450 .enumerate()
10451 .rev()
10452 .find_map(|(i, entry)| {
10453 if entry.diagnostic.group_id == active_group_id {
10454 Some(i)
10455 } else {
10456 None
10457 }
10458 })
10459 });
10460
10461 let next_primary_diagnostic = match direction {
10462 Direction::Prev => primary_diagnostics_before
10463 .iter()
10464 .take(last_same_group_diagnostic_before.unwrap_or(usize::MAX))
10465 .rev()
10466 .next(),
10467 Direction::Next => primary_diagnostics_after
10468 .iter()
10469 .skip(
10470 last_same_group_diagnostic_after
10471 .map(|index| index + 1)
10472 .unwrap_or(0),
10473 )
10474 .next(),
10475 };
10476
10477 // Cycle around to the start of the buffer, potentially moving back to the start of
10478 // the currently active diagnostic.
10479 let cycle_around = || match direction {
10480 Direction::Prev => primary_diagnostics_after
10481 .iter()
10482 .rev()
10483 .chain(primary_diagnostics_before.iter().rev())
10484 .next(),
10485 Direction::Next => primary_diagnostics_before
10486 .iter()
10487 .chain(primary_diagnostics_after.iter())
10488 .next(),
10489 };
10490
10491 if let Some((primary_range, group_id)) = next_primary_diagnostic
10492 .or_else(cycle_around)
10493 .map(|entry| (&entry.range, entry.diagnostic.group_id))
10494 {
10495 let Some(buffer_id) = buffer.anchor_after(primary_range.start).buffer_id else {
10496 return;
10497 };
10498 self.activate_diagnostics(buffer_id, group_id, window, cx);
10499 if self.active_diagnostics.is_some() {
10500 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10501 s.select(vec![Selection {
10502 id: selection.id,
10503 start: primary_range.start,
10504 end: primary_range.start,
10505 reversed: false,
10506 goal: SelectionGoal::None,
10507 }]);
10508 });
10509 self.refresh_inline_completion(false, true, window, cx);
10510 }
10511 }
10512 }
10513
10514 fn go_to_next_hunk(&mut self, _: &GoToHunk, window: &mut Window, cx: &mut Context<Self>) {
10515 let snapshot = self.snapshot(window, cx);
10516 let selection = self.selections.newest::<Point>(cx);
10517 self.go_to_hunk_after_position(&snapshot, selection.head(), window, cx);
10518 }
10519
10520 fn go_to_hunk_after_position(
10521 &mut self,
10522 snapshot: &EditorSnapshot,
10523 position: Point,
10524 window: &mut Window,
10525 cx: &mut Context<Editor>,
10526 ) -> Option<MultiBufferDiffHunk> {
10527 let mut hunk = snapshot
10528 .buffer_snapshot
10529 .diff_hunks_in_range(position..snapshot.buffer_snapshot.max_point())
10530 .find(|hunk| hunk.row_range.start.0 > position.row);
10531 if hunk.is_none() {
10532 hunk = snapshot
10533 .buffer_snapshot
10534 .diff_hunks_in_range(Point::zero()..position)
10535 .find(|hunk| hunk.row_range.end.0 < position.row)
10536 }
10537 if let Some(hunk) = &hunk {
10538 let destination = Point::new(hunk.row_range.start.0, 0);
10539 self.unfold_ranges(&[destination..destination], false, false, cx);
10540 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10541 s.select_ranges(vec![destination..destination]);
10542 });
10543 }
10544
10545 hunk
10546 }
10547
10548 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, window: &mut Window, cx: &mut Context<Self>) {
10549 let snapshot = self.snapshot(window, cx);
10550 let selection = self.selections.newest::<Point>(cx);
10551 self.go_to_hunk_before_position(&snapshot, selection.head(), window, cx);
10552 }
10553
10554 fn go_to_hunk_before_position(
10555 &mut self,
10556 snapshot: &EditorSnapshot,
10557 position: Point,
10558 window: &mut Window,
10559 cx: &mut Context<Editor>,
10560 ) -> Option<MultiBufferDiffHunk> {
10561 let mut hunk = snapshot.buffer_snapshot.diff_hunk_before(position);
10562 if hunk.is_none() {
10563 hunk = snapshot.buffer_snapshot.diff_hunk_before(Point::MAX);
10564 }
10565 if let Some(hunk) = &hunk {
10566 let destination = Point::new(hunk.row_range.start.0, 0);
10567 self.unfold_ranges(&[destination..destination], false, false, cx);
10568 self.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
10569 s.select_ranges(vec![destination..destination]);
10570 });
10571 }
10572
10573 hunk
10574 }
10575
10576 pub fn go_to_definition(
10577 &mut self,
10578 _: &GoToDefinition,
10579 window: &mut Window,
10580 cx: &mut Context<Self>,
10581 ) -> Task<Result<Navigated>> {
10582 let definition =
10583 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, window, cx);
10584 cx.spawn_in(window, |editor, mut cx| async move {
10585 if definition.await? == Navigated::Yes {
10586 return Ok(Navigated::Yes);
10587 }
10588 match editor.update_in(&mut cx, |editor, window, cx| {
10589 editor.find_all_references(&FindAllReferences, window, cx)
10590 })? {
10591 Some(references) => references.await,
10592 None => Ok(Navigated::No),
10593 }
10594 })
10595 }
10596
10597 pub fn go_to_declaration(
10598 &mut self,
10599 _: &GoToDeclaration,
10600 window: &mut Window,
10601 cx: &mut Context<Self>,
10602 ) -> Task<Result<Navigated>> {
10603 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, window, cx)
10604 }
10605
10606 pub fn go_to_declaration_split(
10607 &mut self,
10608 _: &GoToDeclaration,
10609 window: &mut Window,
10610 cx: &mut Context<Self>,
10611 ) -> Task<Result<Navigated>> {
10612 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, window, cx)
10613 }
10614
10615 pub fn go_to_implementation(
10616 &mut self,
10617 _: &GoToImplementation,
10618 window: &mut Window,
10619 cx: &mut Context<Self>,
10620 ) -> Task<Result<Navigated>> {
10621 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, window, cx)
10622 }
10623
10624 pub fn go_to_implementation_split(
10625 &mut self,
10626 _: &GoToImplementationSplit,
10627 window: &mut Window,
10628 cx: &mut Context<Self>,
10629 ) -> Task<Result<Navigated>> {
10630 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, window, cx)
10631 }
10632
10633 pub fn go_to_type_definition(
10634 &mut self,
10635 _: &GoToTypeDefinition,
10636 window: &mut Window,
10637 cx: &mut Context<Self>,
10638 ) -> Task<Result<Navigated>> {
10639 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, window, cx)
10640 }
10641
10642 pub fn go_to_definition_split(
10643 &mut self,
10644 _: &GoToDefinitionSplit,
10645 window: &mut Window,
10646 cx: &mut Context<Self>,
10647 ) -> Task<Result<Navigated>> {
10648 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, window, cx)
10649 }
10650
10651 pub fn go_to_type_definition_split(
10652 &mut self,
10653 _: &GoToTypeDefinitionSplit,
10654 window: &mut Window,
10655 cx: &mut Context<Self>,
10656 ) -> Task<Result<Navigated>> {
10657 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, window, cx)
10658 }
10659
10660 fn go_to_definition_of_kind(
10661 &mut self,
10662 kind: GotoDefinitionKind,
10663 split: bool,
10664 window: &mut Window,
10665 cx: &mut Context<Self>,
10666 ) -> Task<Result<Navigated>> {
10667 let Some(provider) = self.semantics_provider.clone() else {
10668 return Task::ready(Ok(Navigated::No));
10669 };
10670 let head = self.selections.newest::<usize>(cx).head();
10671 let buffer = self.buffer.read(cx);
10672 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
10673 text_anchor
10674 } else {
10675 return Task::ready(Ok(Navigated::No));
10676 };
10677
10678 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
10679 return Task::ready(Ok(Navigated::No));
10680 };
10681
10682 cx.spawn_in(window, |editor, mut cx| async move {
10683 let definitions = definitions.await?;
10684 let navigated = editor
10685 .update_in(&mut cx, |editor, window, cx| {
10686 editor.navigate_to_hover_links(
10687 Some(kind),
10688 definitions
10689 .into_iter()
10690 .filter(|location| {
10691 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
10692 })
10693 .map(HoverLink::Text)
10694 .collect::<Vec<_>>(),
10695 split,
10696 window,
10697 cx,
10698 )
10699 })?
10700 .await?;
10701 anyhow::Ok(navigated)
10702 })
10703 }
10704
10705 pub fn open_url(&mut self, _: &OpenUrl, window: &mut Window, cx: &mut Context<Self>) {
10706 let selection = self.selections.newest_anchor();
10707 let head = selection.head();
10708 let tail = selection.tail();
10709
10710 let Some((buffer, start_position)) =
10711 self.buffer.read(cx).text_anchor_for_position(head, cx)
10712 else {
10713 return;
10714 };
10715
10716 let end_position = if head != tail {
10717 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
10718 return;
10719 };
10720 Some(pos)
10721 } else {
10722 None
10723 };
10724
10725 let url_finder = cx.spawn_in(window, |editor, mut cx| async move {
10726 let url = if let Some(end_pos) = end_position {
10727 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
10728 } else {
10729 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
10730 };
10731
10732 if let Some(url) = url {
10733 editor.update(&mut cx, |_, cx| {
10734 cx.open_url(&url);
10735 })
10736 } else {
10737 Ok(())
10738 }
10739 });
10740
10741 url_finder.detach();
10742 }
10743
10744 pub fn open_selected_filename(
10745 &mut self,
10746 _: &OpenSelectedFilename,
10747 window: &mut Window,
10748 cx: &mut Context<Self>,
10749 ) {
10750 let Some(workspace) = self.workspace() else {
10751 return;
10752 };
10753
10754 let position = self.selections.newest_anchor().head();
10755
10756 let Some((buffer, buffer_position)) =
10757 self.buffer.read(cx).text_anchor_for_position(position, cx)
10758 else {
10759 return;
10760 };
10761
10762 let project = self.project.clone();
10763
10764 cx.spawn_in(window, |_, mut cx| async move {
10765 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10766
10767 if let Some((_, path)) = result {
10768 workspace
10769 .update_in(&mut cx, |workspace, window, cx| {
10770 workspace.open_resolved_path(path, window, cx)
10771 })?
10772 .await?;
10773 }
10774 anyhow::Ok(())
10775 })
10776 .detach();
10777 }
10778
10779 pub(crate) fn navigate_to_hover_links(
10780 &mut self,
10781 kind: Option<GotoDefinitionKind>,
10782 mut definitions: Vec<HoverLink>,
10783 split: bool,
10784 window: &mut Window,
10785 cx: &mut Context<Editor>,
10786 ) -> Task<Result<Navigated>> {
10787 // If there is one definition, just open it directly
10788 if definitions.len() == 1 {
10789 let definition = definitions.pop().unwrap();
10790
10791 enum TargetTaskResult {
10792 Location(Option<Location>),
10793 AlreadyNavigated,
10794 }
10795
10796 let target_task = match definition {
10797 HoverLink::Text(link) => {
10798 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10799 }
10800 HoverLink::InlayHint(lsp_location, server_id) => {
10801 let computation =
10802 self.compute_target_location(lsp_location, server_id, window, cx);
10803 cx.background_executor().spawn(async move {
10804 let location = computation.await?;
10805 Ok(TargetTaskResult::Location(location))
10806 })
10807 }
10808 HoverLink::Url(url) => {
10809 cx.open_url(&url);
10810 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10811 }
10812 HoverLink::File(path) => {
10813 if let Some(workspace) = self.workspace() {
10814 cx.spawn_in(window, |_, mut cx| async move {
10815 workspace
10816 .update_in(&mut cx, |workspace, window, cx| {
10817 workspace.open_resolved_path(path, window, cx)
10818 })?
10819 .await
10820 .map(|_| TargetTaskResult::AlreadyNavigated)
10821 })
10822 } else {
10823 Task::ready(Ok(TargetTaskResult::Location(None)))
10824 }
10825 }
10826 };
10827 cx.spawn_in(window, |editor, mut cx| async move {
10828 let target = match target_task.await.context("target resolution task")? {
10829 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10830 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10831 TargetTaskResult::Location(Some(target)) => target,
10832 };
10833
10834 editor.update_in(&mut cx, |editor, window, cx| {
10835 let Some(workspace) = editor.workspace() else {
10836 return Navigated::No;
10837 };
10838 let pane = workspace.read(cx).active_pane().clone();
10839
10840 let range = target.range.to_point(target.buffer.read(cx));
10841 let range = editor.range_for_match(&range);
10842 let range = collapse_multiline_range(range);
10843
10844 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10845 editor.go_to_singleton_buffer_range(range.clone(), window, cx);
10846 } else {
10847 window.defer(cx, move |window, cx| {
10848 let target_editor: Entity<Self> =
10849 workspace.update(cx, |workspace, cx| {
10850 let pane = if split {
10851 workspace.adjacent_pane(window, cx)
10852 } else {
10853 workspace.active_pane().clone()
10854 };
10855
10856 workspace.open_project_item(
10857 pane,
10858 target.buffer.clone(),
10859 true,
10860 true,
10861 window,
10862 cx,
10863 )
10864 });
10865 target_editor.update(cx, |target_editor, cx| {
10866 // When selecting a definition in a different buffer, disable the nav history
10867 // to avoid creating a history entry at the previous cursor location.
10868 pane.update(cx, |pane, _| pane.disable_history());
10869 target_editor.go_to_singleton_buffer_range(range, window, cx);
10870 pane.update(cx, |pane, _| pane.enable_history());
10871 });
10872 });
10873 }
10874 Navigated::Yes
10875 })
10876 })
10877 } else if !definitions.is_empty() {
10878 cx.spawn_in(window, |editor, mut cx| async move {
10879 let (title, location_tasks, workspace) = editor
10880 .update_in(&mut cx, |editor, window, cx| {
10881 let tab_kind = match kind {
10882 Some(GotoDefinitionKind::Implementation) => "Implementations",
10883 _ => "Definitions",
10884 };
10885 let title = definitions
10886 .iter()
10887 .find_map(|definition| match definition {
10888 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10889 let buffer = origin.buffer.read(cx);
10890 format!(
10891 "{} for {}",
10892 tab_kind,
10893 buffer
10894 .text_for_range(origin.range.clone())
10895 .collect::<String>()
10896 )
10897 }),
10898 HoverLink::InlayHint(_, _) => None,
10899 HoverLink::Url(_) => None,
10900 HoverLink::File(_) => None,
10901 })
10902 .unwrap_or(tab_kind.to_string());
10903 let location_tasks = definitions
10904 .into_iter()
10905 .map(|definition| match definition {
10906 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
10907 HoverLink::InlayHint(lsp_location, server_id) => editor
10908 .compute_target_location(lsp_location, server_id, window, cx),
10909 HoverLink::Url(_) => Task::ready(Ok(None)),
10910 HoverLink::File(_) => Task::ready(Ok(None)),
10911 })
10912 .collect::<Vec<_>>();
10913 (title, location_tasks, editor.workspace().clone())
10914 })
10915 .context("location tasks preparation")?;
10916
10917 let locations = future::join_all(location_tasks)
10918 .await
10919 .into_iter()
10920 .filter_map(|location| location.transpose())
10921 .collect::<Result<_>>()
10922 .context("location tasks")?;
10923
10924 let Some(workspace) = workspace else {
10925 return Ok(Navigated::No);
10926 };
10927 let opened = workspace
10928 .update_in(&mut cx, |workspace, window, cx| {
10929 Self::open_locations_in_multibuffer(
10930 workspace,
10931 locations,
10932 title,
10933 split,
10934 MultibufferSelectionMode::First,
10935 window,
10936 cx,
10937 )
10938 })
10939 .ok();
10940
10941 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10942 })
10943 } else {
10944 Task::ready(Ok(Navigated::No))
10945 }
10946 }
10947
10948 fn compute_target_location(
10949 &self,
10950 lsp_location: lsp::Location,
10951 server_id: LanguageServerId,
10952 window: &mut Window,
10953 cx: &mut Context<Self>,
10954 ) -> Task<anyhow::Result<Option<Location>>> {
10955 let Some(project) = self.project.clone() else {
10956 return Task::ready(Ok(None));
10957 };
10958
10959 cx.spawn_in(window, move |editor, mut cx| async move {
10960 let location_task = editor.update(&mut cx, |_, cx| {
10961 project.update(cx, |project, cx| {
10962 let language_server_name = project
10963 .language_server_statuses(cx)
10964 .find(|(id, _)| server_id == *id)
10965 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10966 language_server_name.map(|language_server_name| {
10967 project.open_local_buffer_via_lsp(
10968 lsp_location.uri.clone(),
10969 server_id,
10970 language_server_name,
10971 cx,
10972 )
10973 })
10974 })
10975 })?;
10976 let location = match location_task {
10977 Some(task) => Some({
10978 let target_buffer_handle = task.await.context("open local buffer")?;
10979 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10980 let target_start = target_buffer
10981 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10982 let target_end = target_buffer
10983 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10984 target_buffer.anchor_after(target_start)
10985 ..target_buffer.anchor_before(target_end)
10986 })?;
10987 Location {
10988 buffer: target_buffer_handle,
10989 range,
10990 }
10991 }),
10992 None => None,
10993 };
10994 Ok(location)
10995 })
10996 }
10997
10998 pub fn find_all_references(
10999 &mut self,
11000 _: &FindAllReferences,
11001 window: &mut Window,
11002 cx: &mut Context<Self>,
11003 ) -> Option<Task<Result<Navigated>>> {
11004 let selection = self.selections.newest::<usize>(cx);
11005 let multi_buffer = self.buffer.read(cx);
11006 let head = selection.head();
11007
11008 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11009 let head_anchor = multi_buffer_snapshot.anchor_at(
11010 head,
11011 if head < selection.tail() {
11012 Bias::Right
11013 } else {
11014 Bias::Left
11015 },
11016 );
11017
11018 match self
11019 .find_all_references_task_sources
11020 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
11021 {
11022 Ok(_) => {
11023 log::info!(
11024 "Ignoring repeated FindAllReferences invocation with the position of already running task"
11025 );
11026 return None;
11027 }
11028 Err(i) => {
11029 self.find_all_references_task_sources.insert(i, head_anchor);
11030 }
11031 }
11032
11033 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
11034 let workspace = self.workspace()?;
11035 let project = workspace.read(cx).project().clone();
11036 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
11037 Some(cx.spawn_in(window, |editor, mut cx| async move {
11038 let _cleanup = defer({
11039 let mut cx = cx.clone();
11040 move || {
11041 let _ = editor.update(&mut cx, |editor, _| {
11042 if let Ok(i) =
11043 editor
11044 .find_all_references_task_sources
11045 .binary_search_by(|anchor| {
11046 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
11047 })
11048 {
11049 editor.find_all_references_task_sources.remove(i);
11050 }
11051 });
11052 }
11053 });
11054
11055 let locations = references.await?;
11056 if locations.is_empty() {
11057 return anyhow::Ok(Navigated::No);
11058 }
11059
11060 workspace.update_in(&mut cx, |workspace, window, cx| {
11061 let title = locations
11062 .first()
11063 .as_ref()
11064 .map(|location| {
11065 let buffer = location.buffer.read(cx);
11066 format!(
11067 "References to `{}`",
11068 buffer
11069 .text_for_range(location.range.clone())
11070 .collect::<String>()
11071 )
11072 })
11073 .unwrap();
11074 Self::open_locations_in_multibuffer(
11075 workspace,
11076 locations,
11077 title,
11078 false,
11079 MultibufferSelectionMode::First,
11080 window,
11081 cx,
11082 );
11083 Navigated::Yes
11084 })
11085 }))
11086 }
11087
11088 /// Opens a multibuffer with the given project locations in it
11089 pub fn open_locations_in_multibuffer(
11090 workspace: &mut Workspace,
11091 mut locations: Vec<Location>,
11092 title: String,
11093 split: bool,
11094 multibuffer_selection_mode: MultibufferSelectionMode,
11095 window: &mut Window,
11096 cx: &mut Context<Workspace>,
11097 ) {
11098 // If there are multiple definitions, open them in a multibuffer
11099 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
11100 let mut locations = locations.into_iter().peekable();
11101 let mut ranges = Vec::new();
11102 let capability = workspace.project().read(cx).capability();
11103
11104 let excerpt_buffer = cx.new(|cx| {
11105 let mut multibuffer = MultiBuffer::new(capability);
11106 while let Some(location) = locations.next() {
11107 let buffer = location.buffer.read(cx);
11108 let mut ranges_for_buffer = Vec::new();
11109 let range = location.range.to_offset(buffer);
11110 ranges_for_buffer.push(range.clone());
11111
11112 while let Some(next_location) = locations.peek() {
11113 if next_location.buffer == location.buffer {
11114 ranges_for_buffer.push(next_location.range.to_offset(buffer));
11115 locations.next();
11116 } else {
11117 break;
11118 }
11119 }
11120
11121 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
11122 ranges.extend(multibuffer.push_excerpts_with_context_lines(
11123 location.buffer.clone(),
11124 ranges_for_buffer,
11125 DEFAULT_MULTIBUFFER_CONTEXT,
11126 cx,
11127 ))
11128 }
11129
11130 multibuffer.with_title(title)
11131 });
11132
11133 let editor = cx.new(|cx| {
11134 Editor::for_multibuffer(
11135 excerpt_buffer,
11136 Some(workspace.project().clone()),
11137 true,
11138 window,
11139 cx,
11140 )
11141 });
11142 editor.update(cx, |editor, cx| {
11143 match multibuffer_selection_mode {
11144 MultibufferSelectionMode::First => {
11145 if let Some(first_range) = ranges.first() {
11146 editor.change_selections(None, window, cx, |selections| {
11147 selections.clear_disjoint();
11148 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
11149 });
11150 }
11151 editor.highlight_background::<Self>(
11152 &ranges,
11153 |theme| theme.editor_highlighted_line_background,
11154 cx,
11155 );
11156 }
11157 MultibufferSelectionMode::All => {
11158 editor.change_selections(None, window, cx, |selections| {
11159 selections.clear_disjoint();
11160 selections.select_anchor_ranges(ranges);
11161 });
11162 }
11163 }
11164 editor.register_buffers_with_language_servers(cx);
11165 });
11166
11167 let item = Box::new(editor);
11168 let item_id = item.item_id();
11169
11170 if split {
11171 workspace.split_item(SplitDirection::Right, item.clone(), window, cx);
11172 } else {
11173 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
11174 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
11175 pane.close_current_preview_item(window, cx)
11176 } else {
11177 None
11178 }
11179 });
11180 workspace.add_item_to_active_pane(item.clone(), destination_index, true, window, cx);
11181 }
11182 workspace.active_pane().update(cx, |pane, cx| {
11183 pane.set_preview_item_id(Some(item_id), cx);
11184 });
11185 }
11186
11187 pub fn rename(
11188 &mut self,
11189 _: &Rename,
11190 window: &mut Window,
11191 cx: &mut Context<Self>,
11192 ) -> Option<Task<Result<()>>> {
11193 use language::ToOffset as _;
11194
11195 let provider = self.semantics_provider.clone()?;
11196 let selection = self.selections.newest_anchor().clone();
11197 let (cursor_buffer, cursor_buffer_position) = self
11198 .buffer
11199 .read(cx)
11200 .text_anchor_for_position(selection.head(), cx)?;
11201 let (tail_buffer, cursor_buffer_position_end) = self
11202 .buffer
11203 .read(cx)
11204 .text_anchor_for_position(selection.tail(), cx)?;
11205 if tail_buffer != cursor_buffer {
11206 return None;
11207 }
11208
11209 let snapshot = cursor_buffer.read(cx).snapshot();
11210 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
11211 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
11212 let prepare_rename = provider
11213 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
11214 .unwrap_or_else(|| Task::ready(Ok(None)));
11215 drop(snapshot);
11216
11217 Some(cx.spawn_in(window, |this, mut cx| async move {
11218 let rename_range = if let Some(range) = prepare_rename.await? {
11219 Some(range)
11220 } else {
11221 this.update(&mut cx, |this, cx| {
11222 let buffer = this.buffer.read(cx).snapshot(cx);
11223 let mut buffer_highlights = this
11224 .document_highlights_for_position(selection.head(), &buffer)
11225 .filter(|highlight| {
11226 highlight.start.excerpt_id == selection.head().excerpt_id
11227 && highlight.end.excerpt_id == selection.head().excerpt_id
11228 });
11229 buffer_highlights
11230 .next()
11231 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
11232 })?
11233 };
11234 if let Some(rename_range) = rename_range {
11235 this.update_in(&mut cx, |this, window, cx| {
11236 let snapshot = cursor_buffer.read(cx).snapshot();
11237 let rename_buffer_range = rename_range.to_offset(&snapshot);
11238 let cursor_offset_in_rename_range =
11239 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
11240 let cursor_offset_in_rename_range_end =
11241 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
11242
11243 this.take_rename(false, window, cx);
11244 let buffer = this.buffer.read(cx).read(cx);
11245 let cursor_offset = selection.head().to_offset(&buffer);
11246 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
11247 let rename_end = rename_start + rename_buffer_range.len();
11248 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
11249 let mut old_highlight_id = None;
11250 let old_name: Arc<str> = buffer
11251 .chunks(rename_start..rename_end, true)
11252 .map(|chunk| {
11253 if old_highlight_id.is_none() {
11254 old_highlight_id = chunk.syntax_highlight_id;
11255 }
11256 chunk.text
11257 })
11258 .collect::<String>()
11259 .into();
11260
11261 drop(buffer);
11262
11263 // Position the selection in the rename editor so that it matches the current selection.
11264 this.show_local_selections = false;
11265 let rename_editor = cx.new(|cx| {
11266 let mut editor = Editor::single_line(window, cx);
11267 editor.buffer.update(cx, |buffer, cx| {
11268 buffer.edit([(0..0, old_name.clone())], None, cx)
11269 });
11270 let rename_selection_range = match cursor_offset_in_rename_range
11271 .cmp(&cursor_offset_in_rename_range_end)
11272 {
11273 Ordering::Equal => {
11274 editor.select_all(&SelectAll, window, cx);
11275 return editor;
11276 }
11277 Ordering::Less => {
11278 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
11279 }
11280 Ordering::Greater => {
11281 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
11282 }
11283 };
11284 if rename_selection_range.end > old_name.len() {
11285 editor.select_all(&SelectAll, window, cx);
11286 } else {
11287 editor.change_selections(Some(Autoscroll::fit()), window, cx, |s| {
11288 s.select_ranges([rename_selection_range]);
11289 });
11290 }
11291 editor
11292 });
11293 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
11294 if e == &EditorEvent::Focused {
11295 cx.emit(EditorEvent::FocusedIn)
11296 }
11297 })
11298 .detach();
11299
11300 let write_highlights =
11301 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
11302 let read_highlights =
11303 this.clear_background_highlights::<DocumentHighlightRead>(cx);
11304 let ranges = write_highlights
11305 .iter()
11306 .flat_map(|(_, ranges)| ranges.iter())
11307 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
11308 .cloned()
11309 .collect();
11310
11311 this.highlight_text::<Rename>(
11312 ranges,
11313 HighlightStyle {
11314 fade_out: Some(0.6),
11315 ..Default::default()
11316 },
11317 cx,
11318 );
11319 let rename_focus_handle = rename_editor.focus_handle(cx);
11320 window.focus(&rename_focus_handle);
11321 let block_id = this.insert_blocks(
11322 [BlockProperties {
11323 style: BlockStyle::Flex,
11324 placement: BlockPlacement::Below(range.start),
11325 height: 1,
11326 render: Arc::new({
11327 let rename_editor = rename_editor.clone();
11328 move |cx: &mut BlockContext| {
11329 let mut text_style = cx.editor_style.text.clone();
11330 if let Some(highlight_style) = old_highlight_id
11331 .and_then(|h| h.style(&cx.editor_style.syntax))
11332 {
11333 text_style = text_style.highlight(highlight_style);
11334 }
11335 div()
11336 .block_mouse_down()
11337 .pl(cx.anchor_x)
11338 .child(EditorElement::new(
11339 &rename_editor,
11340 EditorStyle {
11341 background: cx.theme().system().transparent,
11342 local_player: cx.editor_style.local_player,
11343 text: text_style,
11344 scrollbar_width: cx.editor_style.scrollbar_width,
11345 syntax: cx.editor_style.syntax.clone(),
11346 status: cx.editor_style.status.clone(),
11347 inlay_hints_style: HighlightStyle {
11348 font_weight: Some(FontWeight::BOLD),
11349 ..make_inlay_hints_style(cx.app)
11350 },
11351 inline_completion_styles: make_suggestion_styles(
11352 cx.app,
11353 ),
11354 ..EditorStyle::default()
11355 },
11356 ))
11357 .into_any_element()
11358 }
11359 }),
11360 priority: 0,
11361 }],
11362 Some(Autoscroll::fit()),
11363 cx,
11364 )[0];
11365 this.pending_rename = Some(RenameState {
11366 range,
11367 old_name,
11368 editor: rename_editor,
11369 block_id,
11370 });
11371 })?;
11372 }
11373
11374 Ok(())
11375 }))
11376 }
11377
11378 pub fn confirm_rename(
11379 &mut self,
11380 _: &ConfirmRename,
11381 window: &mut Window,
11382 cx: &mut Context<Self>,
11383 ) -> Option<Task<Result<()>>> {
11384 let rename = self.take_rename(false, window, cx)?;
11385 let workspace = self.workspace()?.downgrade();
11386 let (buffer, start) = self
11387 .buffer
11388 .read(cx)
11389 .text_anchor_for_position(rename.range.start, cx)?;
11390 let (end_buffer, _) = self
11391 .buffer
11392 .read(cx)
11393 .text_anchor_for_position(rename.range.end, cx)?;
11394 if buffer != end_buffer {
11395 return None;
11396 }
11397
11398 let old_name = rename.old_name;
11399 let new_name = rename.editor.read(cx).text(cx);
11400
11401 let rename = self.semantics_provider.as_ref()?.perform_rename(
11402 &buffer,
11403 start,
11404 new_name.clone(),
11405 cx,
11406 )?;
11407
11408 Some(cx.spawn_in(window, |editor, mut cx| async move {
11409 let project_transaction = rename.await?;
11410 Self::open_project_transaction(
11411 &editor,
11412 workspace,
11413 project_transaction,
11414 format!("Rename: {} → {}", old_name, new_name),
11415 cx.clone(),
11416 )
11417 .await?;
11418
11419 editor.update(&mut cx, |editor, cx| {
11420 editor.refresh_document_highlights(cx);
11421 })?;
11422 Ok(())
11423 }))
11424 }
11425
11426 fn take_rename(
11427 &mut self,
11428 moving_cursor: bool,
11429 window: &mut Window,
11430 cx: &mut Context<Self>,
11431 ) -> Option<RenameState> {
11432 let rename = self.pending_rename.take()?;
11433 if rename.editor.focus_handle(cx).is_focused(window) {
11434 window.focus(&self.focus_handle);
11435 }
11436
11437 self.remove_blocks(
11438 [rename.block_id].into_iter().collect(),
11439 Some(Autoscroll::fit()),
11440 cx,
11441 );
11442 self.clear_highlights::<Rename>(cx);
11443 self.show_local_selections = true;
11444
11445 if moving_cursor {
11446 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
11447 editor.selections.newest::<usize>(cx).head()
11448 });
11449
11450 // Update the selection to match the position of the selection inside
11451 // the rename editor.
11452 let snapshot = self.buffer.read(cx).read(cx);
11453 let rename_range = rename.range.to_offset(&snapshot);
11454 let cursor_in_editor = snapshot
11455 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
11456 .min(rename_range.end);
11457 drop(snapshot);
11458
11459 self.change_selections(None, window, cx, |s| {
11460 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
11461 });
11462 } else {
11463 self.refresh_document_highlights(cx);
11464 }
11465
11466 Some(rename)
11467 }
11468
11469 pub fn pending_rename(&self) -> Option<&RenameState> {
11470 self.pending_rename.as_ref()
11471 }
11472
11473 fn format(
11474 &mut self,
11475 _: &Format,
11476 window: &mut Window,
11477 cx: &mut Context<Self>,
11478 ) -> Option<Task<Result<()>>> {
11479 let project = match &self.project {
11480 Some(project) => project.clone(),
11481 None => return None,
11482 };
11483
11484 Some(self.perform_format(
11485 project,
11486 FormatTrigger::Manual,
11487 FormatTarget::Buffers,
11488 window,
11489 cx,
11490 ))
11491 }
11492
11493 fn format_selections(
11494 &mut self,
11495 _: &FormatSelections,
11496 window: &mut Window,
11497 cx: &mut Context<Self>,
11498 ) -> Option<Task<Result<()>>> {
11499 let project = match &self.project {
11500 Some(project) => project.clone(),
11501 None => return None,
11502 };
11503
11504 let ranges = self
11505 .selections
11506 .all_adjusted(cx)
11507 .into_iter()
11508 .map(|selection| selection.range())
11509 .collect_vec();
11510
11511 Some(self.perform_format(
11512 project,
11513 FormatTrigger::Manual,
11514 FormatTarget::Ranges(ranges),
11515 window,
11516 cx,
11517 ))
11518 }
11519
11520 fn perform_format(
11521 &mut self,
11522 project: Entity<Project>,
11523 trigger: FormatTrigger,
11524 target: FormatTarget,
11525 window: &mut Window,
11526 cx: &mut Context<Self>,
11527 ) -> Task<Result<()>> {
11528 let buffer = self.buffer.clone();
11529 let (buffers, target) = match target {
11530 FormatTarget::Buffers => {
11531 let mut buffers = buffer.read(cx).all_buffers();
11532 if trigger == FormatTrigger::Save {
11533 buffers.retain(|buffer| buffer.read(cx).is_dirty());
11534 }
11535 (buffers, LspFormatTarget::Buffers)
11536 }
11537 FormatTarget::Ranges(selection_ranges) => {
11538 let multi_buffer = buffer.read(cx);
11539 let snapshot = multi_buffer.read(cx);
11540 let mut buffers = HashSet::default();
11541 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
11542 BTreeMap::new();
11543 for selection_range in selection_ranges {
11544 for (buffer, buffer_range, _) in
11545 snapshot.range_to_buffer_ranges(selection_range)
11546 {
11547 let buffer_id = buffer.remote_id();
11548 let start = buffer.anchor_before(buffer_range.start);
11549 let end = buffer.anchor_after(buffer_range.end);
11550 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
11551 buffer_id_to_ranges
11552 .entry(buffer_id)
11553 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
11554 .or_insert_with(|| vec![start..end]);
11555 }
11556 }
11557 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
11558 }
11559 };
11560
11561 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
11562 let format = project.update(cx, |project, cx| {
11563 project.format(buffers, target, true, trigger, cx)
11564 });
11565
11566 cx.spawn_in(window, |_, mut cx| async move {
11567 let transaction = futures::select_biased! {
11568 () = timeout => {
11569 log::warn!("timed out waiting for formatting");
11570 None
11571 }
11572 transaction = format.log_err().fuse() => transaction,
11573 };
11574
11575 buffer
11576 .update(&mut cx, |buffer, cx| {
11577 if let Some(transaction) = transaction {
11578 if !buffer.is_singleton() {
11579 buffer.push_transaction(&transaction.0, cx);
11580 }
11581 }
11582
11583 cx.notify();
11584 })
11585 .ok();
11586
11587 Ok(())
11588 })
11589 }
11590
11591 fn restart_language_server(
11592 &mut self,
11593 _: &RestartLanguageServer,
11594 _: &mut Window,
11595 cx: &mut Context<Self>,
11596 ) {
11597 if let Some(project) = self.project.clone() {
11598 self.buffer.update(cx, |multi_buffer, cx| {
11599 project.update(cx, |project, cx| {
11600 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
11601 });
11602 })
11603 }
11604 }
11605
11606 fn cancel_language_server_work(
11607 workspace: &mut Workspace,
11608 _: &actions::CancelLanguageServerWork,
11609 _: &mut Window,
11610 cx: &mut Context<Workspace>,
11611 ) {
11612 let project = workspace.project();
11613 let buffers = workspace
11614 .active_item(cx)
11615 .and_then(|item| item.act_as::<Editor>(cx))
11616 .map_or(HashSet::default(), |editor| {
11617 editor.read(cx).buffer.read(cx).all_buffers()
11618 });
11619 project.update(cx, |project, cx| {
11620 project.cancel_language_server_work_for_buffers(buffers, cx);
11621 });
11622 }
11623
11624 fn show_character_palette(
11625 &mut self,
11626 _: &ShowCharacterPalette,
11627 window: &mut Window,
11628 _: &mut Context<Self>,
11629 ) {
11630 window.show_character_palette();
11631 }
11632
11633 fn refresh_active_diagnostics(&mut self, cx: &mut Context<Editor>) {
11634 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
11635 let buffer = self.buffer.read(cx).snapshot(cx);
11636 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
11637 let primary_range_end = active_diagnostics.primary_range.end.to_offset(&buffer);
11638 let is_valid = buffer
11639 .diagnostics_in_range::<usize>(primary_range_start..primary_range_end)
11640 .any(|entry| {
11641 entry.diagnostic.is_primary
11642 && !entry.range.is_empty()
11643 && entry.range.start == primary_range_start
11644 && entry.diagnostic.message == active_diagnostics.primary_message
11645 });
11646
11647 if is_valid != active_diagnostics.is_valid {
11648 active_diagnostics.is_valid = is_valid;
11649 let mut new_styles = HashMap::default();
11650 for (block_id, diagnostic) in &active_diagnostics.blocks {
11651 new_styles.insert(
11652 *block_id,
11653 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
11654 );
11655 }
11656 self.display_map.update(cx, |display_map, _cx| {
11657 display_map.replace_blocks(new_styles)
11658 });
11659 }
11660 }
11661 }
11662
11663 fn activate_diagnostics(
11664 &mut self,
11665 buffer_id: BufferId,
11666 group_id: usize,
11667 window: &mut Window,
11668 cx: &mut Context<Self>,
11669 ) {
11670 self.dismiss_diagnostics(cx);
11671 let snapshot = self.snapshot(window, cx);
11672 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
11673 let buffer = self.buffer.read(cx).snapshot(cx);
11674
11675 let mut primary_range = None;
11676 let mut primary_message = None;
11677 let diagnostic_group = buffer
11678 .diagnostic_group(buffer_id, group_id)
11679 .filter_map(|entry| {
11680 let start = entry.range.start;
11681 let end = entry.range.end;
11682 if snapshot.is_line_folded(MultiBufferRow(start.row))
11683 && (start.row == end.row
11684 || snapshot.is_line_folded(MultiBufferRow(end.row)))
11685 {
11686 return None;
11687 }
11688 if entry.diagnostic.is_primary {
11689 primary_range = Some(entry.range.clone());
11690 primary_message = Some(entry.diagnostic.message.clone());
11691 }
11692 Some(entry)
11693 })
11694 .collect::<Vec<_>>();
11695 let primary_range = primary_range?;
11696 let primary_message = primary_message?;
11697
11698 let blocks = display_map
11699 .insert_blocks(
11700 diagnostic_group.iter().map(|entry| {
11701 let diagnostic = entry.diagnostic.clone();
11702 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
11703 BlockProperties {
11704 style: BlockStyle::Fixed,
11705 placement: BlockPlacement::Below(
11706 buffer.anchor_after(entry.range.start),
11707 ),
11708 height: message_height,
11709 render: diagnostic_block_renderer(diagnostic, None, true, true),
11710 priority: 0,
11711 }
11712 }),
11713 cx,
11714 )
11715 .into_iter()
11716 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
11717 .collect();
11718
11719 Some(ActiveDiagnosticGroup {
11720 primary_range: buffer.anchor_before(primary_range.start)
11721 ..buffer.anchor_after(primary_range.end),
11722 primary_message,
11723 group_id,
11724 blocks,
11725 is_valid: true,
11726 })
11727 });
11728 }
11729
11730 fn dismiss_diagnostics(&mut self, cx: &mut Context<Self>) {
11731 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
11732 self.display_map.update(cx, |display_map, cx| {
11733 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
11734 });
11735 cx.notify();
11736 }
11737 }
11738
11739 pub fn set_selections_from_remote(
11740 &mut self,
11741 selections: Vec<Selection<Anchor>>,
11742 pending_selection: Option<Selection<Anchor>>,
11743 window: &mut Window,
11744 cx: &mut Context<Self>,
11745 ) {
11746 let old_cursor_position = self.selections.newest_anchor().head();
11747 self.selections.change_with(cx, |s| {
11748 s.select_anchors(selections);
11749 if let Some(pending_selection) = pending_selection {
11750 s.set_pending(pending_selection, SelectMode::Character);
11751 } else {
11752 s.clear_pending();
11753 }
11754 });
11755 self.selections_did_change(false, &old_cursor_position, true, window, cx);
11756 }
11757
11758 fn push_to_selection_history(&mut self) {
11759 self.selection_history.push(SelectionHistoryEntry {
11760 selections: self.selections.disjoint_anchors(),
11761 select_next_state: self.select_next_state.clone(),
11762 select_prev_state: self.select_prev_state.clone(),
11763 add_selections_state: self.add_selections_state.clone(),
11764 });
11765 }
11766
11767 pub fn transact(
11768 &mut self,
11769 window: &mut Window,
11770 cx: &mut Context<Self>,
11771 update: impl FnOnce(&mut Self, &mut Window, &mut Context<Self>),
11772 ) -> Option<TransactionId> {
11773 self.start_transaction_at(Instant::now(), window, cx);
11774 update(self, window, cx);
11775 self.end_transaction_at(Instant::now(), cx)
11776 }
11777
11778 pub fn start_transaction_at(
11779 &mut self,
11780 now: Instant,
11781 window: &mut Window,
11782 cx: &mut Context<Self>,
11783 ) {
11784 self.end_selection(window, cx);
11785 if let Some(tx_id) = self
11786 .buffer
11787 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
11788 {
11789 self.selection_history
11790 .insert_transaction(tx_id, self.selections.disjoint_anchors());
11791 cx.emit(EditorEvent::TransactionBegun {
11792 transaction_id: tx_id,
11793 })
11794 }
11795 }
11796
11797 pub fn end_transaction_at(
11798 &mut self,
11799 now: Instant,
11800 cx: &mut Context<Self>,
11801 ) -> Option<TransactionId> {
11802 if let Some(transaction_id) = self
11803 .buffer
11804 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
11805 {
11806 if let Some((_, end_selections)) =
11807 self.selection_history.transaction_mut(transaction_id)
11808 {
11809 *end_selections = Some(self.selections.disjoint_anchors());
11810 } else {
11811 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
11812 }
11813
11814 cx.emit(EditorEvent::Edited { transaction_id });
11815 Some(transaction_id)
11816 } else {
11817 None
11818 }
11819 }
11820
11821 pub fn set_mark(&mut self, _: &actions::SetMark, window: &mut Window, cx: &mut Context<Self>) {
11822 if self.selection_mark_mode {
11823 self.change_selections(None, window, cx, |s| {
11824 s.move_with(|_, sel| {
11825 sel.collapse_to(sel.head(), SelectionGoal::None);
11826 });
11827 })
11828 }
11829 self.selection_mark_mode = true;
11830 cx.notify();
11831 }
11832
11833 pub fn swap_selection_ends(
11834 &mut self,
11835 _: &actions::SwapSelectionEnds,
11836 window: &mut Window,
11837 cx: &mut Context<Self>,
11838 ) {
11839 self.change_selections(None, window, cx, |s| {
11840 s.move_with(|_, sel| {
11841 if sel.start != sel.end {
11842 sel.reversed = !sel.reversed
11843 }
11844 });
11845 });
11846 self.request_autoscroll(Autoscroll::newest(), cx);
11847 cx.notify();
11848 }
11849
11850 pub fn toggle_fold(
11851 &mut self,
11852 _: &actions::ToggleFold,
11853 window: &mut Window,
11854 cx: &mut Context<Self>,
11855 ) {
11856 if self.is_singleton(cx) {
11857 let selection = self.selections.newest::<Point>(cx);
11858
11859 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11860 let range = if selection.is_empty() {
11861 let point = selection.head().to_display_point(&display_map);
11862 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11863 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11864 .to_point(&display_map);
11865 start..end
11866 } else {
11867 selection.range()
11868 };
11869 if display_map.folds_in_range(range).next().is_some() {
11870 self.unfold_lines(&Default::default(), window, cx)
11871 } else {
11872 self.fold(&Default::default(), window, cx)
11873 }
11874 } else {
11875 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
11876 let buffer_ids: HashSet<_> = multi_buffer_snapshot
11877 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
11878 .map(|(snapshot, _, _)| snapshot.remote_id())
11879 .collect();
11880
11881 for buffer_id in buffer_ids {
11882 if self.is_buffer_folded(buffer_id, cx) {
11883 self.unfold_buffer(buffer_id, cx);
11884 } else {
11885 self.fold_buffer(buffer_id, cx);
11886 }
11887 }
11888 }
11889 }
11890
11891 pub fn toggle_fold_recursive(
11892 &mut self,
11893 _: &actions::ToggleFoldRecursive,
11894 window: &mut Window,
11895 cx: &mut Context<Self>,
11896 ) {
11897 let selection = self.selections.newest::<Point>(cx);
11898
11899 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11900 let range = if selection.is_empty() {
11901 let point = selection.head().to_display_point(&display_map);
11902 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11903 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11904 .to_point(&display_map);
11905 start..end
11906 } else {
11907 selection.range()
11908 };
11909 if display_map.folds_in_range(range).next().is_some() {
11910 self.unfold_recursive(&Default::default(), window, cx)
11911 } else {
11912 self.fold_recursive(&Default::default(), window, cx)
11913 }
11914 }
11915
11916 pub fn fold(&mut self, _: &actions::Fold, window: &mut Window, cx: &mut Context<Self>) {
11917 if self.is_singleton(cx) {
11918 let mut to_fold = Vec::new();
11919 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11920 let selections = self.selections.all_adjusted(cx);
11921
11922 for selection in selections {
11923 let range = selection.range().sorted();
11924 let buffer_start_row = range.start.row;
11925
11926 if range.start.row != range.end.row {
11927 let mut found = false;
11928 let mut row = range.start.row;
11929 while row <= range.end.row {
11930 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
11931 {
11932 found = true;
11933 row = crease.range().end.row + 1;
11934 to_fold.push(crease);
11935 } else {
11936 row += 1
11937 }
11938 }
11939 if found {
11940 continue;
11941 }
11942 }
11943
11944 for row in (0..=range.start.row).rev() {
11945 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11946 if crease.range().end.row >= buffer_start_row {
11947 to_fold.push(crease);
11948 if row <= range.start.row {
11949 break;
11950 }
11951 }
11952 }
11953 }
11954 }
11955
11956 self.fold_creases(to_fold, true, window, cx);
11957 } else {
11958 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
11959
11960 let buffer_ids: HashSet<_> = multi_buffer_snapshot
11961 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
11962 .map(|(snapshot, _, _)| snapshot.remote_id())
11963 .collect();
11964 for buffer_id in buffer_ids {
11965 self.fold_buffer(buffer_id, cx);
11966 }
11967 }
11968 }
11969
11970 fn fold_at_level(
11971 &mut self,
11972 fold_at: &FoldAtLevel,
11973 window: &mut Window,
11974 cx: &mut Context<Self>,
11975 ) {
11976 if !self.buffer.read(cx).is_singleton() {
11977 return;
11978 }
11979
11980 let fold_at_level = fold_at.0;
11981 let snapshot = self.buffer.read(cx).snapshot(cx);
11982 let mut to_fold = Vec::new();
11983 let mut stack = vec![(0, snapshot.max_row().0, 1)];
11984
11985 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11986 while start_row < end_row {
11987 match self
11988 .snapshot(window, cx)
11989 .crease_for_buffer_row(MultiBufferRow(start_row))
11990 {
11991 Some(crease) => {
11992 let nested_start_row = crease.range().start.row + 1;
11993 let nested_end_row = crease.range().end.row;
11994
11995 if current_level < fold_at_level {
11996 stack.push((nested_start_row, nested_end_row, current_level + 1));
11997 } else if current_level == fold_at_level {
11998 to_fold.push(crease);
11999 }
12000
12001 start_row = nested_end_row + 1;
12002 }
12003 None => start_row += 1,
12004 }
12005 }
12006 }
12007
12008 self.fold_creases(to_fold, true, window, cx);
12009 }
12010
12011 pub fn fold_all(&mut self, _: &actions::FoldAll, window: &mut Window, cx: &mut Context<Self>) {
12012 if self.buffer.read(cx).is_singleton() {
12013 let mut fold_ranges = Vec::new();
12014 let snapshot = self.buffer.read(cx).snapshot(cx);
12015
12016 for row in 0..snapshot.max_row().0 {
12017 if let Some(foldable_range) = self
12018 .snapshot(window, cx)
12019 .crease_for_buffer_row(MultiBufferRow(row))
12020 {
12021 fold_ranges.push(foldable_range);
12022 }
12023 }
12024
12025 self.fold_creases(fold_ranges, true, window, cx);
12026 } else {
12027 self.toggle_fold_multiple_buffers = cx.spawn_in(window, |editor, mut cx| async move {
12028 editor
12029 .update_in(&mut cx, |editor, _, cx| {
12030 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
12031 editor.fold_buffer(buffer_id, cx);
12032 }
12033 })
12034 .ok();
12035 });
12036 }
12037 }
12038
12039 pub fn fold_function_bodies(
12040 &mut self,
12041 _: &actions::FoldFunctionBodies,
12042 window: &mut Window,
12043 cx: &mut Context<Self>,
12044 ) {
12045 let snapshot = self.buffer.read(cx).snapshot(cx);
12046
12047 let ranges = snapshot
12048 .text_object_ranges(0..snapshot.len(), TreeSitterOptions::default())
12049 .filter_map(|(range, obj)| (obj == TextObject::InsideFunction).then_some(range))
12050 .collect::<Vec<_>>();
12051
12052 let creases = ranges
12053 .into_iter()
12054 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
12055 .collect();
12056
12057 self.fold_creases(creases, true, window, cx);
12058 }
12059
12060 pub fn fold_recursive(
12061 &mut self,
12062 _: &actions::FoldRecursive,
12063 window: &mut Window,
12064 cx: &mut Context<Self>,
12065 ) {
12066 let mut to_fold = Vec::new();
12067 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12068 let selections = self.selections.all_adjusted(cx);
12069
12070 for selection in selections {
12071 let range = selection.range().sorted();
12072 let buffer_start_row = range.start.row;
12073
12074 if range.start.row != range.end.row {
12075 let mut found = false;
12076 for row in range.start.row..=range.end.row {
12077 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
12078 found = true;
12079 to_fold.push(crease);
12080 }
12081 }
12082 if found {
12083 continue;
12084 }
12085 }
12086
12087 for row in (0..=range.start.row).rev() {
12088 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
12089 if crease.range().end.row >= buffer_start_row {
12090 to_fold.push(crease);
12091 } else {
12092 break;
12093 }
12094 }
12095 }
12096 }
12097
12098 self.fold_creases(to_fold, true, window, cx);
12099 }
12100
12101 pub fn fold_at(&mut self, fold_at: &FoldAt, window: &mut Window, cx: &mut Context<Self>) {
12102 let buffer_row = fold_at.buffer_row;
12103 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12104
12105 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
12106 let autoscroll = self
12107 .selections
12108 .all::<Point>(cx)
12109 .iter()
12110 .any(|selection| crease.range().overlaps(&selection.range()));
12111
12112 self.fold_creases(vec![crease], autoscroll, window, cx);
12113 }
12114 }
12115
12116 pub fn unfold_lines(&mut self, _: &UnfoldLines, _window: &mut Window, cx: &mut Context<Self>) {
12117 if self.is_singleton(cx) {
12118 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12119 let buffer = &display_map.buffer_snapshot;
12120 let selections = self.selections.all::<Point>(cx);
12121 let ranges = selections
12122 .iter()
12123 .map(|s| {
12124 let range = s.display_range(&display_map).sorted();
12125 let mut start = range.start.to_point(&display_map);
12126 let mut end = range.end.to_point(&display_map);
12127 start.column = 0;
12128 end.column = buffer.line_len(MultiBufferRow(end.row));
12129 start..end
12130 })
12131 .collect::<Vec<_>>();
12132
12133 self.unfold_ranges(&ranges, true, true, cx);
12134 } else {
12135 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12136 let buffer_ids: HashSet<_> = multi_buffer_snapshot
12137 .ranges_to_buffer_ranges(self.selections.disjoint_anchor_ranges())
12138 .map(|(snapshot, _, _)| snapshot.remote_id())
12139 .collect();
12140 for buffer_id in buffer_ids {
12141 self.unfold_buffer(buffer_id, cx);
12142 }
12143 }
12144 }
12145
12146 pub fn unfold_recursive(
12147 &mut self,
12148 _: &UnfoldRecursive,
12149 _window: &mut Window,
12150 cx: &mut Context<Self>,
12151 ) {
12152 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12153 let selections = self.selections.all::<Point>(cx);
12154 let ranges = selections
12155 .iter()
12156 .map(|s| {
12157 let mut range = s.display_range(&display_map).sorted();
12158 *range.start.column_mut() = 0;
12159 *range.end.column_mut() = display_map.line_len(range.end.row());
12160 let start = range.start.to_point(&display_map);
12161 let end = range.end.to_point(&display_map);
12162 start..end
12163 })
12164 .collect::<Vec<_>>();
12165
12166 self.unfold_ranges(&ranges, true, true, cx);
12167 }
12168
12169 pub fn unfold_at(
12170 &mut self,
12171 unfold_at: &UnfoldAt,
12172 _window: &mut Window,
12173 cx: &mut Context<Self>,
12174 ) {
12175 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12176
12177 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
12178 ..Point::new(
12179 unfold_at.buffer_row.0,
12180 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
12181 );
12182
12183 let autoscroll = self
12184 .selections
12185 .all::<Point>(cx)
12186 .iter()
12187 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
12188
12189 self.unfold_ranges(&[intersection_range], true, autoscroll, cx);
12190 }
12191
12192 pub fn unfold_all(
12193 &mut self,
12194 _: &actions::UnfoldAll,
12195 _window: &mut Window,
12196 cx: &mut Context<Self>,
12197 ) {
12198 if self.buffer.read(cx).is_singleton() {
12199 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12200 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
12201 } else {
12202 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
12203 editor
12204 .update(&mut cx, |editor, cx| {
12205 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
12206 editor.unfold_buffer(buffer_id, cx);
12207 }
12208 })
12209 .ok();
12210 });
12211 }
12212 }
12213
12214 pub fn fold_selected_ranges(
12215 &mut self,
12216 _: &FoldSelectedRanges,
12217 window: &mut Window,
12218 cx: &mut Context<Self>,
12219 ) {
12220 let selections = self.selections.all::<Point>(cx);
12221 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12222 let line_mode = self.selections.line_mode;
12223 let ranges = selections
12224 .into_iter()
12225 .map(|s| {
12226 if line_mode {
12227 let start = Point::new(s.start.row, 0);
12228 let end = Point::new(
12229 s.end.row,
12230 display_map
12231 .buffer_snapshot
12232 .line_len(MultiBufferRow(s.end.row)),
12233 );
12234 Crease::simple(start..end, display_map.fold_placeholder.clone())
12235 } else {
12236 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
12237 }
12238 })
12239 .collect::<Vec<_>>();
12240 self.fold_creases(ranges, true, window, cx);
12241 }
12242
12243 pub fn fold_ranges<T: ToOffset + Clone>(
12244 &mut self,
12245 ranges: Vec<Range<T>>,
12246 auto_scroll: bool,
12247 window: &mut Window,
12248 cx: &mut Context<Self>,
12249 ) {
12250 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
12251 let ranges = ranges
12252 .into_iter()
12253 .map(|r| Crease::simple(r, display_map.fold_placeholder.clone()))
12254 .collect::<Vec<_>>();
12255 self.fold_creases(ranges, auto_scroll, window, cx);
12256 }
12257
12258 pub fn fold_creases<T: ToOffset + Clone>(
12259 &mut self,
12260 creases: Vec<Crease<T>>,
12261 auto_scroll: bool,
12262 window: &mut Window,
12263 cx: &mut Context<Self>,
12264 ) {
12265 if creases.is_empty() {
12266 return;
12267 }
12268
12269 let mut buffers_affected = HashSet::default();
12270 let multi_buffer = self.buffer().read(cx);
12271 for crease in &creases {
12272 if let Some((_, buffer, _)) =
12273 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
12274 {
12275 buffers_affected.insert(buffer.read(cx).remote_id());
12276 };
12277 }
12278
12279 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
12280
12281 if auto_scroll {
12282 self.request_autoscroll(Autoscroll::fit(), cx);
12283 }
12284
12285 cx.notify();
12286
12287 if let Some(active_diagnostics) = self.active_diagnostics.take() {
12288 // Clear diagnostics block when folding a range that contains it.
12289 let snapshot = self.snapshot(window, cx);
12290 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
12291 drop(snapshot);
12292 self.active_diagnostics = Some(active_diagnostics);
12293 self.dismiss_diagnostics(cx);
12294 } else {
12295 self.active_diagnostics = Some(active_diagnostics);
12296 }
12297 }
12298
12299 self.scrollbar_marker_state.dirty = true;
12300 }
12301
12302 /// Removes any folds whose ranges intersect any of the given ranges.
12303 pub fn unfold_ranges<T: ToOffset + Clone>(
12304 &mut self,
12305 ranges: &[Range<T>],
12306 inclusive: bool,
12307 auto_scroll: bool,
12308 cx: &mut Context<Self>,
12309 ) {
12310 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
12311 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
12312 });
12313 }
12314
12315 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut Context<Self>) {
12316 if self.buffer().read(cx).is_singleton() || self.is_buffer_folded(buffer_id, cx) {
12317 return;
12318 }
12319 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(buffer_id, cx);
12320 self.display_map
12321 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
12322 cx.emit(EditorEvent::BufferFoldToggled {
12323 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
12324 folded: true,
12325 });
12326 cx.notify();
12327 }
12328
12329 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut Context<Self>) {
12330 if self.buffer().read(cx).is_singleton() || !self.is_buffer_folded(buffer_id, cx) {
12331 return;
12332 }
12333 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(buffer_id, cx);
12334 self.display_map.update(cx, |display_map, cx| {
12335 display_map.unfold_buffer(buffer_id, cx);
12336 });
12337 cx.emit(EditorEvent::BufferFoldToggled {
12338 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
12339 folded: false,
12340 });
12341 cx.notify();
12342 }
12343
12344 pub fn is_buffer_folded(&self, buffer: BufferId, cx: &App) -> bool {
12345 self.display_map.read(cx).is_buffer_folded(buffer)
12346 }
12347
12348 pub fn folded_buffers<'a>(&self, cx: &'a App) -> &'a HashSet<BufferId> {
12349 self.display_map.read(cx).folded_buffers()
12350 }
12351
12352 /// Removes any folds with the given ranges.
12353 pub fn remove_folds_with_type<T: ToOffset + Clone>(
12354 &mut self,
12355 ranges: &[Range<T>],
12356 type_id: TypeId,
12357 auto_scroll: bool,
12358 cx: &mut Context<Self>,
12359 ) {
12360 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
12361 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
12362 });
12363 }
12364
12365 fn remove_folds_with<T: ToOffset + Clone>(
12366 &mut self,
12367 ranges: &[Range<T>],
12368 auto_scroll: bool,
12369 cx: &mut Context<Self>,
12370 update: impl FnOnce(&mut DisplayMap, &mut Context<DisplayMap>),
12371 ) {
12372 if ranges.is_empty() {
12373 return;
12374 }
12375
12376 let mut buffers_affected = HashSet::default();
12377 let multi_buffer = self.buffer().read(cx);
12378 for range in ranges {
12379 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
12380 buffers_affected.insert(buffer.read(cx).remote_id());
12381 };
12382 }
12383
12384 self.display_map.update(cx, update);
12385
12386 if auto_scroll {
12387 self.request_autoscroll(Autoscroll::fit(), cx);
12388 }
12389
12390 cx.notify();
12391 self.scrollbar_marker_state.dirty = true;
12392 self.active_indent_guides_state.dirty = true;
12393 }
12394
12395 pub fn default_fold_placeholder(&self, cx: &App) -> FoldPlaceholder {
12396 self.display_map.read(cx).fold_placeholder.clone()
12397 }
12398
12399 pub fn set_expand_all_diff_hunks(&mut self, cx: &mut App) {
12400 self.buffer.update(cx, |buffer, cx| {
12401 buffer.set_all_diff_hunks_expanded(cx);
12402 });
12403 }
12404
12405 pub fn set_distinguish_unstaged_diff_hunks(&mut self) {
12406 self.distinguish_unstaged_diff_hunks = true;
12407 }
12408
12409 pub fn expand_all_diff_hunks(
12410 &mut self,
12411 _: &ExpandAllHunkDiffs,
12412 _window: &mut Window,
12413 cx: &mut Context<Self>,
12414 ) {
12415 self.buffer.update(cx, |buffer, cx| {
12416 buffer.expand_diff_hunks(vec![Anchor::min()..Anchor::max()], cx)
12417 });
12418 }
12419
12420 pub fn toggle_selected_diff_hunks(
12421 &mut self,
12422 _: &ToggleSelectedDiffHunks,
12423 _window: &mut Window,
12424 cx: &mut Context<Self>,
12425 ) {
12426 let ranges: Vec<_> = self.selections.disjoint.iter().map(|s| s.range()).collect();
12427 self.toggle_diff_hunks_in_ranges(ranges, cx);
12428 }
12429
12430 fn diff_hunks_in_ranges<'a>(
12431 &'a self,
12432 ranges: &'a [Range<Anchor>],
12433 buffer: &'a MultiBufferSnapshot,
12434 ) -> impl 'a + Iterator<Item = MultiBufferDiffHunk> {
12435 ranges.iter().flat_map(move |range| {
12436 let end_excerpt_id = range.end.excerpt_id;
12437 let range = range.to_point(buffer);
12438 let mut peek_end = range.end;
12439 if range.end.row < buffer.max_row().0 {
12440 peek_end = Point::new(range.end.row + 1, 0);
12441 }
12442 buffer
12443 .diff_hunks_in_range(range.start..peek_end)
12444 .filter(move |hunk| hunk.excerpt_id.cmp(&end_excerpt_id, buffer).is_le())
12445 })
12446 }
12447
12448 pub fn has_stageable_diff_hunks_in_ranges(
12449 &self,
12450 ranges: &[Range<Anchor>],
12451 snapshot: &MultiBufferSnapshot,
12452 ) -> bool {
12453 let mut hunks = self.diff_hunks_in_ranges(ranges, &snapshot);
12454 hunks.any(|hunk| {
12455 log::debug!("considering {hunk:?}");
12456 hunk.secondary_status == DiffHunkSecondaryStatus::HasSecondaryHunk
12457 })
12458 }
12459
12460 pub fn toggle_staged_selected_diff_hunks(
12461 &mut self,
12462 _: &ToggleStagedSelectedDiffHunks,
12463 _window: &mut Window,
12464 cx: &mut Context<Self>,
12465 ) {
12466 let ranges: Vec<_> = self.selections.disjoint.iter().map(|s| s.range()).collect();
12467 self.stage_or_unstage_diff_hunks(&ranges, cx);
12468 }
12469
12470 pub fn stage_or_unstage_diff_hunks(
12471 &mut self,
12472 ranges: &[Range<Anchor>],
12473 cx: &mut Context<Self>,
12474 ) {
12475 let Some(project) = &self.project else {
12476 return;
12477 };
12478 let snapshot = self.buffer.read(cx).snapshot(cx);
12479 let stage = self.has_stageable_diff_hunks_in_ranges(ranges, &snapshot);
12480
12481 let chunk_by = self
12482 .diff_hunks_in_ranges(&ranges, &snapshot)
12483 .chunk_by(|hunk| hunk.buffer_id);
12484 for (buffer_id, hunks) in &chunk_by {
12485 let Some(buffer) = project.read(cx).buffer_for_id(buffer_id, cx) else {
12486 log::debug!("no buffer for id");
12487 continue;
12488 };
12489 let buffer = buffer.read(cx).snapshot();
12490 let Some((repo, path)) = project
12491 .read(cx)
12492 .repository_and_path_for_buffer_id(buffer_id, cx)
12493 else {
12494 log::debug!("no git repo for buffer id");
12495 continue;
12496 };
12497 let Some(diff) = snapshot.diff_for_buffer_id(buffer_id) else {
12498 log::debug!("no diff for buffer id");
12499 continue;
12500 };
12501 let Some(secondary_diff) = diff.secondary_diff() else {
12502 log::debug!("no secondary diff for buffer id");
12503 continue;
12504 };
12505
12506 let edits = diff.secondary_edits_for_stage_or_unstage(
12507 stage,
12508 hunks.map(|hunk| {
12509 (
12510 hunk.diff_base_byte_range.clone(),
12511 hunk.secondary_diff_base_byte_range.clone(),
12512 hunk.buffer_range.clone(),
12513 )
12514 }),
12515 &buffer,
12516 );
12517
12518 let index_base = secondary_diff.base_text().map_or_else(
12519 || Rope::from(""),
12520 |snapshot| snapshot.text.as_rope().clone(),
12521 );
12522 let index_buffer = cx.new(|cx| {
12523 Buffer::local_normalized(index_base.clone(), text::LineEnding::default(), cx)
12524 });
12525 let new_index_text = index_buffer.update(cx, |index_buffer, cx| {
12526 index_buffer.edit(edits, None, cx);
12527 index_buffer.snapshot().as_rope().to_string()
12528 });
12529 let new_index_text = if new_index_text.is_empty()
12530 && (diff.is_single_insertion
12531 || buffer
12532 .file()
12533 .map_or(false, |file| file.disk_state() == DiskState::New))
12534 {
12535 log::debug!("removing from index");
12536 None
12537 } else {
12538 Some(new_index_text)
12539 };
12540
12541 let _ = repo.read(cx).set_index_text(&path, new_index_text);
12542 }
12543 }
12544
12545 pub fn expand_selected_diff_hunks(&mut self, cx: &mut Context<Self>) {
12546 let ranges: Vec<_> = self.selections.disjoint.iter().map(|s| s.range()).collect();
12547 self.buffer
12548 .update(cx, |buffer, cx| buffer.expand_diff_hunks(ranges, cx))
12549 }
12550
12551 pub fn clear_expanded_diff_hunks(&mut self, cx: &mut Context<Self>) -> bool {
12552 self.buffer.update(cx, |buffer, cx| {
12553 let ranges = vec![Anchor::min()..Anchor::max()];
12554 if !buffer.all_diff_hunks_expanded()
12555 && buffer.has_expanded_diff_hunks_in_ranges(&ranges, cx)
12556 {
12557 buffer.collapse_diff_hunks(ranges, cx);
12558 true
12559 } else {
12560 false
12561 }
12562 })
12563 }
12564
12565 fn toggle_diff_hunks_in_ranges(
12566 &mut self,
12567 ranges: Vec<Range<Anchor>>,
12568 cx: &mut Context<'_, Editor>,
12569 ) {
12570 self.buffer.update(cx, |buffer, cx| {
12571 let expand = !buffer.has_expanded_diff_hunks_in_ranges(&ranges, cx);
12572 buffer.expand_or_collapse_diff_hunks(ranges, expand, cx);
12573 })
12574 }
12575
12576 fn toggle_diff_hunks_in_ranges_narrow(
12577 &mut self,
12578 ranges: Vec<Range<Anchor>>,
12579 cx: &mut Context<'_, Editor>,
12580 ) {
12581 self.buffer.update(cx, |buffer, cx| {
12582 let expand = !buffer.has_expanded_diff_hunks_in_ranges(&ranges, cx);
12583 buffer.expand_or_collapse_diff_hunks_narrow(ranges, expand, cx);
12584 })
12585 }
12586
12587 pub(crate) fn apply_all_diff_hunks(
12588 &mut self,
12589 _: &ApplyAllDiffHunks,
12590 window: &mut Window,
12591 cx: &mut Context<Self>,
12592 ) {
12593 let buffers = self.buffer.read(cx).all_buffers();
12594 for branch_buffer in buffers {
12595 branch_buffer.update(cx, |branch_buffer, cx| {
12596 branch_buffer.merge_into_base(Vec::new(), cx);
12597 });
12598 }
12599
12600 if let Some(project) = self.project.clone() {
12601 self.save(true, project, window, cx).detach_and_log_err(cx);
12602 }
12603 }
12604
12605 pub(crate) fn apply_selected_diff_hunks(
12606 &mut self,
12607 _: &ApplyDiffHunk,
12608 window: &mut Window,
12609 cx: &mut Context<Self>,
12610 ) {
12611 let snapshot = self.snapshot(window, cx);
12612 let hunks = snapshot.hunks_for_ranges(self.selections.ranges(cx).into_iter());
12613 let mut ranges_by_buffer = HashMap::default();
12614 self.transact(window, cx, |editor, _window, cx| {
12615 for hunk in hunks {
12616 if let Some(buffer) = editor.buffer.read(cx).buffer(hunk.buffer_id) {
12617 ranges_by_buffer
12618 .entry(buffer.clone())
12619 .or_insert_with(Vec::new)
12620 .push(hunk.buffer_range.to_offset(buffer.read(cx)));
12621 }
12622 }
12623
12624 for (buffer, ranges) in ranges_by_buffer {
12625 buffer.update(cx, |buffer, cx| {
12626 buffer.merge_into_base(ranges, cx);
12627 });
12628 }
12629 });
12630
12631 if let Some(project) = self.project.clone() {
12632 self.save(true, project, window, cx).detach_and_log_err(cx);
12633 }
12634 }
12635
12636 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut Context<Self>) {
12637 if hovered != self.gutter_hovered {
12638 self.gutter_hovered = hovered;
12639 cx.notify();
12640 }
12641 }
12642
12643 pub fn insert_blocks(
12644 &mut self,
12645 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
12646 autoscroll: Option<Autoscroll>,
12647 cx: &mut Context<Self>,
12648 ) -> Vec<CustomBlockId> {
12649 let blocks = self
12650 .display_map
12651 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
12652 if let Some(autoscroll) = autoscroll {
12653 self.request_autoscroll(autoscroll, cx);
12654 }
12655 cx.notify();
12656 blocks
12657 }
12658
12659 pub fn resize_blocks(
12660 &mut self,
12661 heights: HashMap<CustomBlockId, u32>,
12662 autoscroll: Option<Autoscroll>,
12663 cx: &mut Context<Self>,
12664 ) {
12665 self.display_map
12666 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
12667 if let Some(autoscroll) = autoscroll {
12668 self.request_autoscroll(autoscroll, cx);
12669 }
12670 cx.notify();
12671 }
12672
12673 pub fn replace_blocks(
12674 &mut self,
12675 renderers: HashMap<CustomBlockId, RenderBlock>,
12676 autoscroll: Option<Autoscroll>,
12677 cx: &mut Context<Self>,
12678 ) {
12679 self.display_map
12680 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
12681 if let Some(autoscroll) = autoscroll {
12682 self.request_autoscroll(autoscroll, cx);
12683 }
12684 cx.notify();
12685 }
12686
12687 pub fn remove_blocks(
12688 &mut self,
12689 block_ids: HashSet<CustomBlockId>,
12690 autoscroll: Option<Autoscroll>,
12691 cx: &mut Context<Self>,
12692 ) {
12693 self.display_map.update(cx, |display_map, cx| {
12694 display_map.remove_blocks(block_ids, cx)
12695 });
12696 if let Some(autoscroll) = autoscroll {
12697 self.request_autoscroll(autoscroll, cx);
12698 }
12699 cx.notify();
12700 }
12701
12702 pub fn row_for_block(
12703 &self,
12704 block_id: CustomBlockId,
12705 cx: &mut Context<Self>,
12706 ) -> Option<DisplayRow> {
12707 self.display_map
12708 .update(cx, |map, cx| map.row_for_block(block_id, cx))
12709 }
12710
12711 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
12712 self.focused_block = Some(focused_block);
12713 }
12714
12715 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
12716 self.focused_block.take()
12717 }
12718
12719 pub fn insert_creases(
12720 &mut self,
12721 creases: impl IntoIterator<Item = Crease<Anchor>>,
12722 cx: &mut Context<Self>,
12723 ) -> Vec<CreaseId> {
12724 self.display_map
12725 .update(cx, |map, cx| map.insert_creases(creases, cx))
12726 }
12727
12728 pub fn remove_creases(
12729 &mut self,
12730 ids: impl IntoIterator<Item = CreaseId>,
12731 cx: &mut Context<Self>,
12732 ) {
12733 self.display_map
12734 .update(cx, |map, cx| map.remove_creases(ids, cx));
12735 }
12736
12737 pub fn longest_row(&self, cx: &mut App) -> DisplayRow {
12738 self.display_map
12739 .update(cx, |map, cx| map.snapshot(cx))
12740 .longest_row()
12741 }
12742
12743 pub fn max_point(&self, cx: &mut App) -> DisplayPoint {
12744 self.display_map
12745 .update(cx, |map, cx| map.snapshot(cx))
12746 .max_point()
12747 }
12748
12749 pub fn text(&self, cx: &App) -> String {
12750 self.buffer.read(cx).read(cx).text()
12751 }
12752
12753 pub fn is_empty(&self, cx: &App) -> bool {
12754 self.buffer.read(cx).read(cx).is_empty()
12755 }
12756
12757 pub fn text_option(&self, cx: &App) -> Option<String> {
12758 let text = self.text(cx);
12759 let text = text.trim();
12760
12761 if text.is_empty() {
12762 return None;
12763 }
12764
12765 Some(text.to_string())
12766 }
12767
12768 pub fn set_text(
12769 &mut self,
12770 text: impl Into<Arc<str>>,
12771 window: &mut Window,
12772 cx: &mut Context<Self>,
12773 ) {
12774 self.transact(window, cx, |this, _, cx| {
12775 this.buffer
12776 .read(cx)
12777 .as_singleton()
12778 .expect("you can only call set_text on editors for singleton buffers")
12779 .update(cx, |buffer, cx| buffer.set_text(text, cx));
12780 });
12781 }
12782
12783 pub fn display_text(&self, cx: &mut App) -> String {
12784 self.display_map
12785 .update(cx, |map, cx| map.snapshot(cx))
12786 .text()
12787 }
12788
12789 pub fn wrap_guides(&self, cx: &App) -> SmallVec<[(usize, bool); 2]> {
12790 let mut wrap_guides = smallvec::smallvec![];
12791
12792 if self.show_wrap_guides == Some(false) {
12793 return wrap_guides;
12794 }
12795
12796 let settings = self.buffer.read(cx).settings_at(0, cx);
12797 if settings.show_wrap_guides {
12798 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
12799 wrap_guides.push((soft_wrap as usize, true));
12800 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
12801 wrap_guides.push((soft_wrap as usize, true));
12802 }
12803 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
12804 }
12805
12806 wrap_guides
12807 }
12808
12809 pub fn soft_wrap_mode(&self, cx: &App) -> SoftWrap {
12810 let settings = self.buffer.read(cx).settings_at(0, cx);
12811 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
12812 match mode {
12813 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
12814 SoftWrap::None
12815 }
12816 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
12817 language_settings::SoftWrap::PreferredLineLength => {
12818 SoftWrap::Column(settings.preferred_line_length)
12819 }
12820 language_settings::SoftWrap::Bounded => {
12821 SoftWrap::Bounded(settings.preferred_line_length)
12822 }
12823 }
12824 }
12825
12826 pub fn set_soft_wrap_mode(
12827 &mut self,
12828 mode: language_settings::SoftWrap,
12829
12830 cx: &mut Context<Self>,
12831 ) {
12832 self.soft_wrap_mode_override = Some(mode);
12833 cx.notify();
12834 }
12835
12836 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
12837 self.text_style_refinement = Some(style);
12838 }
12839
12840 /// called by the Element so we know what style we were most recently rendered with.
12841 pub(crate) fn set_style(
12842 &mut self,
12843 style: EditorStyle,
12844 window: &mut Window,
12845 cx: &mut Context<Self>,
12846 ) {
12847 let rem_size = window.rem_size();
12848 self.display_map.update(cx, |map, cx| {
12849 map.set_font(
12850 style.text.font(),
12851 style.text.font_size.to_pixels(rem_size),
12852 cx,
12853 )
12854 });
12855 self.style = Some(style);
12856 }
12857
12858 pub fn style(&self) -> Option<&EditorStyle> {
12859 self.style.as_ref()
12860 }
12861
12862 // Called by the element. This method is not designed to be called outside of the editor
12863 // element's layout code because it does not notify when rewrapping is computed synchronously.
12864 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut App) -> bool {
12865 self.display_map
12866 .update(cx, |map, cx| map.set_wrap_width(width, cx))
12867 }
12868
12869 pub fn set_soft_wrap(&mut self) {
12870 self.soft_wrap_mode_override = Some(language_settings::SoftWrap::EditorWidth)
12871 }
12872
12873 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, _: &mut Window, cx: &mut Context<Self>) {
12874 if self.soft_wrap_mode_override.is_some() {
12875 self.soft_wrap_mode_override.take();
12876 } else {
12877 let soft_wrap = match self.soft_wrap_mode(cx) {
12878 SoftWrap::GitDiff => return,
12879 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
12880 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
12881 language_settings::SoftWrap::None
12882 }
12883 };
12884 self.soft_wrap_mode_override = Some(soft_wrap);
12885 }
12886 cx.notify();
12887 }
12888
12889 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, _: &mut Window, cx: &mut Context<Self>) {
12890 let Some(workspace) = self.workspace() else {
12891 return;
12892 };
12893 let fs = workspace.read(cx).app_state().fs.clone();
12894 let current_show = TabBarSettings::get_global(cx).show;
12895 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
12896 setting.show = Some(!current_show);
12897 });
12898 }
12899
12900 pub fn toggle_indent_guides(
12901 &mut self,
12902 _: &ToggleIndentGuides,
12903 _: &mut Window,
12904 cx: &mut Context<Self>,
12905 ) {
12906 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
12907 self.buffer
12908 .read(cx)
12909 .settings_at(0, cx)
12910 .indent_guides
12911 .enabled
12912 });
12913 self.show_indent_guides = Some(!currently_enabled);
12914 cx.notify();
12915 }
12916
12917 fn should_show_indent_guides(&self) -> Option<bool> {
12918 self.show_indent_guides
12919 }
12920
12921 pub fn toggle_line_numbers(
12922 &mut self,
12923 _: &ToggleLineNumbers,
12924 _: &mut Window,
12925 cx: &mut Context<Self>,
12926 ) {
12927 let mut editor_settings = EditorSettings::get_global(cx).clone();
12928 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
12929 EditorSettings::override_global(editor_settings, cx);
12930 }
12931
12932 pub fn should_use_relative_line_numbers(&self, cx: &mut App) -> bool {
12933 self.use_relative_line_numbers
12934 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
12935 }
12936
12937 pub fn toggle_relative_line_numbers(
12938 &mut self,
12939 _: &ToggleRelativeLineNumbers,
12940 _: &mut Window,
12941 cx: &mut Context<Self>,
12942 ) {
12943 let is_relative = self.should_use_relative_line_numbers(cx);
12944 self.set_relative_line_number(Some(!is_relative), cx)
12945 }
12946
12947 pub fn set_relative_line_number(&mut self, is_relative: Option<bool>, cx: &mut Context<Self>) {
12948 self.use_relative_line_numbers = is_relative;
12949 cx.notify();
12950 }
12951
12952 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut Context<Self>) {
12953 self.show_gutter = show_gutter;
12954 cx.notify();
12955 }
12956
12957 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut Context<Self>) {
12958 self.show_scrollbars = show_scrollbars;
12959 cx.notify();
12960 }
12961
12962 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut Context<Self>) {
12963 self.show_line_numbers = Some(show_line_numbers);
12964 cx.notify();
12965 }
12966
12967 pub fn set_show_git_diff_gutter(&mut self, show_git_diff_gutter: bool, cx: &mut Context<Self>) {
12968 self.show_git_diff_gutter = Some(show_git_diff_gutter);
12969 cx.notify();
12970 }
12971
12972 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut Context<Self>) {
12973 self.show_code_actions = Some(show_code_actions);
12974 cx.notify();
12975 }
12976
12977 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut Context<Self>) {
12978 self.show_runnables = Some(show_runnables);
12979 cx.notify();
12980 }
12981
12982 pub fn set_masked(&mut self, masked: bool, cx: &mut Context<Self>) {
12983 if self.display_map.read(cx).masked != masked {
12984 self.display_map.update(cx, |map, _| map.masked = masked);
12985 }
12986 cx.notify()
12987 }
12988
12989 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut Context<Self>) {
12990 self.show_wrap_guides = Some(show_wrap_guides);
12991 cx.notify();
12992 }
12993
12994 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut Context<Self>) {
12995 self.show_indent_guides = Some(show_indent_guides);
12996 cx.notify();
12997 }
12998
12999 pub fn working_directory(&self, cx: &App) -> Option<PathBuf> {
13000 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
13001 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
13002 if let Some(dir) = file.abs_path(cx).parent() {
13003 return Some(dir.to_owned());
13004 }
13005 }
13006
13007 if let Some(project_path) = buffer.read(cx).project_path(cx) {
13008 return Some(project_path.path.to_path_buf());
13009 }
13010 }
13011
13012 None
13013 }
13014
13015 fn target_file<'a>(&self, cx: &'a App) -> Option<&'a dyn language::LocalFile> {
13016 self.active_excerpt(cx)?
13017 .1
13018 .read(cx)
13019 .file()
13020 .and_then(|f| f.as_local())
13021 }
13022
13023 pub fn target_file_abs_path(&self, cx: &mut Context<Self>) -> Option<PathBuf> {
13024 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
13025 let buffer = buffer.read(cx);
13026 if let Some(project_path) = buffer.project_path(cx) {
13027 let project = self.project.as_ref()?.read(cx);
13028 project.absolute_path(&project_path, cx)
13029 } else {
13030 buffer
13031 .file()
13032 .and_then(|file| file.as_local().map(|file| file.abs_path(cx)))
13033 }
13034 })
13035 }
13036
13037 fn target_file_path(&self, cx: &mut Context<Self>) -> Option<PathBuf> {
13038 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
13039 let project_path = buffer.read(cx).project_path(cx)?;
13040 let project = self.project.as_ref()?.read(cx);
13041 let entry = project.entry_for_path(&project_path, cx)?;
13042 let path = entry.path.to_path_buf();
13043 Some(path)
13044 })
13045 }
13046
13047 pub fn reveal_in_finder(
13048 &mut self,
13049 _: &RevealInFileManager,
13050 _window: &mut Window,
13051 cx: &mut Context<Self>,
13052 ) {
13053 if let Some(target) = self.target_file(cx) {
13054 cx.reveal_path(&target.abs_path(cx));
13055 }
13056 }
13057
13058 pub fn copy_path(&mut self, _: &CopyPath, _window: &mut Window, cx: &mut Context<Self>) {
13059 if let Some(path) = self.target_file_abs_path(cx) {
13060 if let Some(path) = path.to_str() {
13061 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
13062 }
13063 }
13064 }
13065
13066 pub fn copy_relative_path(
13067 &mut self,
13068 _: &CopyRelativePath,
13069 _window: &mut Window,
13070 cx: &mut Context<Self>,
13071 ) {
13072 if let Some(path) = self.target_file_path(cx) {
13073 if let Some(path) = path.to_str() {
13074 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
13075 }
13076 }
13077 }
13078
13079 pub fn copy_file_name_without_extension(
13080 &mut self,
13081 _: &CopyFileNameWithoutExtension,
13082 _: &mut Window,
13083 cx: &mut Context<Self>,
13084 ) {
13085 if let Some(file) = self.target_file(cx) {
13086 if let Some(file_stem) = file.path().file_stem() {
13087 if let Some(name) = file_stem.to_str() {
13088 cx.write_to_clipboard(ClipboardItem::new_string(name.to_string()));
13089 }
13090 }
13091 }
13092 }
13093
13094 pub fn copy_file_name(&mut self, _: &CopyFileName, _: &mut Window, cx: &mut Context<Self>) {
13095 if let Some(file) = self.target_file(cx) {
13096 if let Some(file_name) = file.path().file_name() {
13097 if let Some(name) = file_name.to_str() {
13098 cx.write_to_clipboard(ClipboardItem::new_string(name.to_string()));
13099 }
13100 }
13101 }
13102 }
13103
13104 pub fn toggle_git_blame(
13105 &mut self,
13106 _: &ToggleGitBlame,
13107 window: &mut Window,
13108 cx: &mut Context<Self>,
13109 ) {
13110 self.show_git_blame_gutter = !self.show_git_blame_gutter;
13111
13112 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
13113 self.start_git_blame(true, window, cx);
13114 }
13115
13116 cx.notify();
13117 }
13118
13119 pub fn toggle_git_blame_inline(
13120 &mut self,
13121 _: &ToggleGitBlameInline,
13122 window: &mut Window,
13123 cx: &mut Context<Self>,
13124 ) {
13125 self.toggle_git_blame_inline_internal(true, window, cx);
13126 cx.notify();
13127 }
13128
13129 pub fn git_blame_inline_enabled(&self) -> bool {
13130 self.git_blame_inline_enabled
13131 }
13132
13133 pub fn toggle_selection_menu(
13134 &mut self,
13135 _: &ToggleSelectionMenu,
13136 _: &mut Window,
13137 cx: &mut Context<Self>,
13138 ) {
13139 self.show_selection_menu = self
13140 .show_selection_menu
13141 .map(|show_selections_menu| !show_selections_menu)
13142 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
13143
13144 cx.notify();
13145 }
13146
13147 pub fn selection_menu_enabled(&self, cx: &App) -> bool {
13148 self.show_selection_menu
13149 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
13150 }
13151
13152 fn start_git_blame(
13153 &mut self,
13154 user_triggered: bool,
13155 window: &mut Window,
13156 cx: &mut Context<Self>,
13157 ) {
13158 if let Some(project) = self.project.as_ref() {
13159 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
13160 return;
13161 };
13162
13163 if buffer.read(cx).file().is_none() {
13164 return;
13165 }
13166
13167 let focused = self.focus_handle(cx).contains_focused(window, cx);
13168
13169 let project = project.clone();
13170 let blame = cx.new(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
13171 self.blame_subscription =
13172 Some(cx.observe_in(&blame, window, |_, _, _, cx| cx.notify()));
13173 self.blame = Some(blame);
13174 }
13175 }
13176
13177 fn toggle_git_blame_inline_internal(
13178 &mut self,
13179 user_triggered: bool,
13180 window: &mut Window,
13181 cx: &mut Context<Self>,
13182 ) {
13183 if self.git_blame_inline_enabled {
13184 self.git_blame_inline_enabled = false;
13185 self.show_git_blame_inline = false;
13186 self.show_git_blame_inline_delay_task.take();
13187 } else {
13188 self.git_blame_inline_enabled = true;
13189 self.start_git_blame_inline(user_triggered, window, cx);
13190 }
13191
13192 cx.notify();
13193 }
13194
13195 fn start_git_blame_inline(
13196 &mut self,
13197 user_triggered: bool,
13198 window: &mut Window,
13199 cx: &mut Context<Self>,
13200 ) {
13201 self.start_git_blame(user_triggered, window, cx);
13202
13203 if ProjectSettings::get_global(cx)
13204 .git
13205 .inline_blame_delay()
13206 .is_some()
13207 {
13208 self.start_inline_blame_timer(window, cx);
13209 } else {
13210 self.show_git_blame_inline = true
13211 }
13212 }
13213
13214 pub fn blame(&self) -> Option<&Entity<GitBlame>> {
13215 self.blame.as_ref()
13216 }
13217
13218 pub fn show_git_blame_gutter(&self) -> bool {
13219 self.show_git_blame_gutter
13220 }
13221
13222 pub fn render_git_blame_gutter(&self, cx: &App) -> bool {
13223 self.show_git_blame_gutter && self.has_blame_entries(cx)
13224 }
13225
13226 pub fn render_git_blame_inline(&self, window: &Window, cx: &App) -> bool {
13227 self.show_git_blame_inline
13228 && self.focus_handle.is_focused(window)
13229 && !self.newest_selection_head_on_empty_line(cx)
13230 && self.has_blame_entries(cx)
13231 }
13232
13233 fn has_blame_entries(&self, cx: &App) -> bool {
13234 self.blame()
13235 .map_or(false, |blame| blame.read(cx).has_generated_entries())
13236 }
13237
13238 fn newest_selection_head_on_empty_line(&self, cx: &App) -> bool {
13239 let cursor_anchor = self.selections.newest_anchor().head();
13240
13241 let snapshot = self.buffer.read(cx).snapshot(cx);
13242 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
13243
13244 snapshot.line_len(buffer_row) == 0
13245 }
13246
13247 fn get_permalink_to_line(&self, cx: &mut Context<Self>) -> Task<Result<url::Url>> {
13248 let buffer_and_selection = maybe!({
13249 let selection = self.selections.newest::<Point>(cx);
13250 let selection_range = selection.range();
13251
13252 let multi_buffer = self.buffer().read(cx);
13253 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
13254 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
13255
13256 let (buffer, range, _) = if selection.reversed {
13257 buffer_ranges.first()
13258 } else {
13259 buffer_ranges.last()
13260 }?;
13261
13262 let selection = text::ToPoint::to_point(&range.start, &buffer).row
13263 ..text::ToPoint::to_point(&range.end, &buffer).row;
13264 Some((
13265 multi_buffer.buffer(buffer.remote_id()).unwrap().clone(),
13266 selection,
13267 ))
13268 });
13269
13270 let Some((buffer, selection)) = buffer_and_selection else {
13271 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
13272 };
13273
13274 let Some(project) = self.project.as_ref() else {
13275 return Task::ready(Err(anyhow!("editor does not have project")));
13276 };
13277
13278 project.update(cx, |project, cx| {
13279 project.get_permalink_to_line(&buffer, selection, cx)
13280 })
13281 }
13282
13283 pub fn copy_permalink_to_line(
13284 &mut self,
13285 _: &CopyPermalinkToLine,
13286 window: &mut Window,
13287 cx: &mut Context<Self>,
13288 ) {
13289 let permalink_task = self.get_permalink_to_line(cx);
13290 let workspace = self.workspace();
13291
13292 cx.spawn_in(window, |_, mut cx| async move {
13293 match permalink_task.await {
13294 Ok(permalink) => {
13295 cx.update(|_, cx| {
13296 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
13297 })
13298 .ok();
13299 }
13300 Err(err) => {
13301 let message = format!("Failed to copy permalink: {err}");
13302
13303 Err::<(), anyhow::Error>(err).log_err();
13304
13305 if let Some(workspace) = workspace {
13306 workspace
13307 .update_in(&mut cx, |workspace, _, cx| {
13308 struct CopyPermalinkToLine;
13309
13310 workspace.show_toast(
13311 Toast::new(
13312 NotificationId::unique::<CopyPermalinkToLine>(),
13313 message,
13314 ),
13315 cx,
13316 )
13317 })
13318 .ok();
13319 }
13320 }
13321 }
13322 })
13323 .detach();
13324 }
13325
13326 pub fn copy_file_location(
13327 &mut self,
13328 _: &CopyFileLocation,
13329 _: &mut Window,
13330 cx: &mut Context<Self>,
13331 ) {
13332 let selection = self.selections.newest::<Point>(cx).start.row + 1;
13333 if let Some(file) = self.target_file(cx) {
13334 if let Some(path) = file.path().to_str() {
13335 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
13336 }
13337 }
13338 }
13339
13340 pub fn open_permalink_to_line(
13341 &mut self,
13342 _: &OpenPermalinkToLine,
13343 window: &mut Window,
13344 cx: &mut Context<Self>,
13345 ) {
13346 let permalink_task = self.get_permalink_to_line(cx);
13347 let workspace = self.workspace();
13348
13349 cx.spawn_in(window, |_, mut cx| async move {
13350 match permalink_task.await {
13351 Ok(permalink) => {
13352 cx.update(|_, cx| {
13353 cx.open_url(permalink.as_ref());
13354 })
13355 .ok();
13356 }
13357 Err(err) => {
13358 let message = format!("Failed to open permalink: {err}");
13359
13360 Err::<(), anyhow::Error>(err).log_err();
13361
13362 if let Some(workspace) = workspace {
13363 workspace
13364 .update(&mut cx, |workspace, cx| {
13365 struct OpenPermalinkToLine;
13366
13367 workspace.show_toast(
13368 Toast::new(
13369 NotificationId::unique::<OpenPermalinkToLine>(),
13370 message,
13371 ),
13372 cx,
13373 )
13374 })
13375 .ok();
13376 }
13377 }
13378 }
13379 })
13380 .detach();
13381 }
13382
13383 pub fn insert_uuid_v4(
13384 &mut self,
13385 _: &InsertUuidV4,
13386 window: &mut Window,
13387 cx: &mut Context<Self>,
13388 ) {
13389 self.insert_uuid(UuidVersion::V4, window, cx);
13390 }
13391
13392 pub fn insert_uuid_v7(
13393 &mut self,
13394 _: &InsertUuidV7,
13395 window: &mut Window,
13396 cx: &mut Context<Self>,
13397 ) {
13398 self.insert_uuid(UuidVersion::V7, window, cx);
13399 }
13400
13401 fn insert_uuid(&mut self, version: UuidVersion, window: &mut Window, cx: &mut Context<Self>) {
13402 self.transact(window, cx, |this, window, cx| {
13403 let edits = this
13404 .selections
13405 .all::<Point>(cx)
13406 .into_iter()
13407 .map(|selection| {
13408 let uuid = match version {
13409 UuidVersion::V4 => uuid::Uuid::new_v4(),
13410 UuidVersion::V7 => uuid::Uuid::now_v7(),
13411 };
13412
13413 (selection.range(), uuid.to_string())
13414 });
13415 this.edit(edits, cx);
13416 this.refresh_inline_completion(true, false, window, cx);
13417 });
13418 }
13419
13420 pub fn open_selections_in_multibuffer(
13421 &mut self,
13422 _: &OpenSelectionsInMultibuffer,
13423 window: &mut Window,
13424 cx: &mut Context<Self>,
13425 ) {
13426 let multibuffer = self.buffer.read(cx);
13427
13428 let Some(buffer) = multibuffer.as_singleton() else {
13429 return;
13430 };
13431
13432 let Some(workspace) = self.workspace() else {
13433 return;
13434 };
13435
13436 let locations = self
13437 .selections
13438 .disjoint_anchors()
13439 .iter()
13440 .map(|range| Location {
13441 buffer: buffer.clone(),
13442 range: range.start.text_anchor..range.end.text_anchor,
13443 })
13444 .collect::<Vec<_>>();
13445
13446 let title = multibuffer.title(cx).to_string();
13447
13448 cx.spawn_in(window, |_, mut cx| async move {
13449 workspace.update_in(&mut cx, |workspace, window, cx| {
13450 Self::open_locations_in_multibuffer(
13451 workspace,
13452 locations,
13453 format!("Selections for '{title}'"),
13454 false,
13455 MultibufferSelectionMode::All,
13456 window,
13457 cx,
13458 );
13459 })
13460 })
13461 .detach();
13462 }
13463
13464 /// Adds a row highlight for the given range. If a row has multiple highlights, the
13465 /// last highlight added will be used.
13466 ///
13467 /// If the range ends at the beginning of a line, then that line will not be highlighted.
13468 pub fn highlight_rows<T: 'static>(
13469 &mut self,
13470 range: Range<Anchor>,
13471 color: Hsla,
13472 should_autoscroll: bool,
13473 cx: &mut Context<Self>,
13474 ) {
13475 let snapshot = self.buffer().read(cx).snapshot(cx);
13476 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
13477 let ix = row_highlights.binary_search_by(|highlight| {
13478 Ordering::Equal
13479 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
13480 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
13481 });
13482
13483 if let Err(mut ix) = ix {
13484 let index = post_inc(&mut self.highlight_order);
13485
13486 // If this range intersects with the preceding highlight, then merge it with
13487 // the preceding highlight. Otherwise insert a new highlight.
13488 let mut merged = false;
13489 if ix > 0 {
13490 let prev_highlight = &mut row_highlights[ix - 1];
13491 if prev_highlight
13492 .range
13493 .end
13494 .cmp(&range.start, &snapshot)
13495 .is_ge()
13496 {
13497 ix -= 1;
13498 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
13499 prev_highlight.range.end = range.end;
13500 }
13501 merged = true;
13502 prev_highlight.index = index;
13503 prev_highlight.color = color;
13504 prev_highlight.should_autoscroll = should_autoscroll;
13505 }
13506 }
13507
13508 if !merged {
13509 row_highlights.insert(
13510 ix,
13511 RowHighlight {
13512 range: range.clone(),
13513 index,
13514 color,
13515 should_autoscroll,
13516 },
13517 );
13518 }
13519
13520 // If any of the following highlights intersect with this one, merge them.
13521 while let Some(next_highlight) = row_highlights.get(ix + 1) {
13522 let highlight = &row_highlights[ix];
13523 if next_highlight
13524 .range
13525 .start
13526 .cmp(&highlight.range.end, &snapshot)
13527 .is_le()
13528 {
13529 if next_highlight
13530 .range
13531 .end
13532 .cmp(&highlight.range.end, &snapshot)
13533 .is_gt()
13534 {
13535 row_highlights[ix].range.end = next_highlight.range.end;
13536 }
13537 row_highlights.remove(ix + 1);
13538 } else {
13539 break;
13540 }
13541 }
13542 }
13543 }
13544
13545 /// Remove any highlighted row ranges of the given type that intersect the
13546 /// given ranges.
13547 pub fn remove_highlighted_rows<T: 'static>(
13548 &mut self,
13549 ranges_to_remove: Vec<Range<Anchor>>,
13550 cx: &mut Context<Self>,
13551 ) {
13552 let snapshot = self.buffer().read(cx).snapshot(cx);
13553 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
13554 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
13555 row_highlights.retain(|highlight| {
13556 while let Some(range_to_remove) = ranges_to_remove.peek() {
13557 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
13558 Ordering::Less | Ordering::Equal => {
13559 ranges_to_remove.next();
13560 }
13561 Ordering::Greater => {
13562 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
13563 Ordering::Less | Ordering::Equal => {
13564 return false;
13565 }
13566 Ordering::Greater => break,
13567 }
13568 }
13569 }
13570 }
13571
13572 true
13573 })
13574 }
13575
13576 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
13577 pub fn clear_row_highlights<T: 'static>(&mut self) {
13578 self.highlighted_rows.remove(&TypeId::of::<T>());
13579 }
13580
13581 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
13582 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
13583 self.highlighted_rows
13584 .get(&TypeId::of::<T>())
13585 .map_or(&[] as &[_], |vec| vec.as_slice())
13586 .iter()
13587 .map(|highlight| (highlight.range.clone(), highlight.color))
13588 }
13589
13590 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
13591 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
13592 /// Allows to ignore certain kinds of highlights.
13593 pub fn highlighted_display_rows(
13594 &self,
13595 window: &mut Window,
13596 cx: &mut App,
13597 ) -> BTreeMap<DisplayRow, Background> {
13598 let snapshot = self.snapshot(window, cx);
13599 let mut used_highlight_orders = HashMap::default();
13600 self.highlighted_rows
13601 .iter()
13602 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
13603 .fold(
13604 BTreeMap::<DisplayRow, Background>::new(),
13605 |mut unique_rows, highlight| {
13606 let start = highlight.range.start.to_display_point(&snapshot);
13607 let end = highlight.range.end.to_display_point(&snapshot);
13608 let start_row = start.row().0;
13609 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
13610 && end.column() == 0
13611 {
13612 end.row().0.saturating_sub(1)
13613 } else {
13614 end.row().0
13615 };
13616 for row in start_row..=end_row {
13617 let used_index =
13618 used_highlight_orders.entry(row).or_insert(highlight.index);
13619 if highlight.index >= *used_index {
13620 *used_index = highlight.index;
13621 unique_rows.insert(DisplayRow(row), highlight.color.into());
13622 }
13623 }
13624 unique_rows
13625 },
13626 )
13627 }
13628
13629 pub fn highlighted_display_row_for_autoscroll(
13630 &self,
13631 snapshot: &DisplaySnapshot,
13632 ) -> Option<DisplayRow> {
13633 self.highlighted_rows
13634 .values()
13635 .flat_map(|highlighted_rows| highlighted_rows.iter())
13636 .filter_map(|highlight| {
13637 if highlight.should_autoscroll {
13638 Some(highlight.range.start.to_display_point(snapshot).row())
13639 } else {
13640 None
13641 }
13642 })
13643 .min()
13644 }
13645
13646 pub fn set_search_within_ranges(&mut self, ranges: &[Range<Anchor>], cx: &mut Context<Self>) {
13647 self.highlight_background::<SearchWithinRange>(
13648 ranges,
13649 |colors| colors.editor_document_highlight_read_background,
13650 cx,
13651 )
13652 }
13653
13654 pub fn set_breadcrumb_header(&mut self, new_header: String) {
13655 self.breadcrumb_header = Some(new_header);
13656 }
13657
13658 pub fn clear_search_within_ranges(&mut self, cx: &mut Context<Self>) {
13659 self.clear_background_highlights::<SearchWithinRange>(cx);
13660 }
13661
13662 pub fn highlight_background<T: 'static>(
13663 &mut self,
13664 ranges: &[Range<Anchor>],
13665 color_fetcher: fn(&ThemeColors) -> Hsla,
13666 cx: &mut Context<Self>,
13667 ) {
13668 self.background_highlights
13669 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
13670 self.scrollbar_marker_state.dirty = true;
13671 cx.notify();
13672 }
13673
13674 pub fn clear_background_highlights<T: 'static>(
13675 &mut self,
13676 cx: &mut Context<Self>,
13677 ) -> Option<BackgroundHighlight> {
13678 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
13679 if !text_highlights.1.is_empty() {
13680 self.scrollbar_marker_state.dirty = true;
13681 cx.notify();
13682 }
13683 Some(text_highlights)
13684 }
13685
13686 pub fn highlight_gutter<T: 'static>(
13687 &mut self,
13688 ranges: &[Range<Anchor>],
13689 color_fetcher: fn(&App) -> Hsla,
13690 cx: &mut Context<Self>,
13691 ) {
13692 self.gutter_highlights
13693 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
13694 cx.notify();
13695 }
13696
13697 pub fn clear_gutter_highlights<T: 'static>(
13698 &mut self,
13699 cx: &mut Context<Self>,
13700 ) -> Option<GutterHighlight> {
13701 cx.notify();
13702 self.gutter_highlights.remove(&TypeId::of::<T>())
13703 }
13704
13705 #[cfg(feature = "test-support")]
13706 pub fn all_text_background_highlights(
13707 &self,
13708 window: &mut Window,
13709 cx: &mut Context<Self>,
13710 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
13711 let snapshot = self.snapshot(window, cx);
13712 let buffer = &snapshot.buffer_snapshot;
13713 let start = buffer.anchor_before(0);
13714 let end = buffer.anchor_after(buffer.len());
13715 let theme = cx.theme().colors();
13716 self.background_highlights_in_range(start..end, &snapshot, theme)
13717 }
13718
13719 #[cfg(feature = "test-support")]
13720 pub fn search_background_highlights(&mut self, cx: &mut Context<Self>) -> Vec<Range<Point>> {
13721 let snapshot = self.buffer().read(cx).snapshot(cx);
13722
13723 let highlights = self
13724 .background_highlights
13725 .get(&TypeId::of::<items::BufferSearchHighlights>());
13726
13727 if let Some((_color, ranges)) = highlights {
13728 ranges
13729 .iter()
13730 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
13731 .collect_vec()
13732 } else {
13733 vec![]
13734 }
13735 }
13736
13737 fn document_highlights_for_position<'a>(
13738 &'a self,
13739 position: Anchor,
13740 buffer: &'a MultiBufferSnapshot,
13741 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
13742 let read_highlights = self
13743 .background_highlights
13744 .get(&TypeId::of::<DocumentHighlightRead>())
13745 .map(|h| &h.1);
13746 let write_highlights = self
13747 .background_highlights
13748 .get(&TypeId::of::<DocumentHighlightWrite>())
13749 .map(|h| &h.1);
13750 let left_position = position.bias_left(buffer);
13751 let right_position = position.bias_right(buffer);
13752 read_highlights
13753 .into_iter()
13754 .chain(write_highlights)
13755 .flat_map(move |ranges| {
13756 let start_ix = match ranges.binary_search_by(|probe| {
13757 let cmp = probe.end.cmp(&left_position, buffer);
13758 if cmp.is_ge() {
13759 Ordering::Greater
13760 } else {
13761 Ordering::Less
13762 }
13763 }) {
13764 Ok(i) | Err(i) => i,
13765 };
13766
13767 ranges[start_ix..]
13768 .iter()
13769 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
13770 })
13771 }
13772
13773 pub fn has_background_highlights<T: 'static>(&self) -> bool {
13774 self.background_highlights
13775 .get(&TypeId::of::<T>())
13776 .map_or(false, |(_, highlights)| !highlights.is_empty())
13777 }
13778
13779 pub fn background_highlights_in_range(
13780 &self,
13781 search_range: Range<Anchor>,
13782 display_snapshot: &DisplaySnapshot,
13783 theme: &ThemeColors,
13784 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
13785 let mut results = Vec::new();
13786 for (color_fetcher, ranges) in self.background_highlights.values() {
13787 let color = color_fetcher(theme);
13788 let start_ix = match ranges.binary_search_by(|probe| {
13789 let cmp = probe
13790 .end
13791 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
13792 if cmp.is_gt() {
13793 Ordering::Greater
13794 } else {
13795 Ordering::Less
13796 }
13797 }) {
13798 Ok(i) | Err(i) => i,
13799 };
13800 for range in &ranges[start_ix..] {
13801 if range
13802 .start
13803 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
13804 .is_ge()
13805 {
13806 break;
13807 }
13808
13809 let start = range.start.to_display_point(display_snapshot);
13810 let end = range.end.to_display_point(display_snapshot);
13811 results.push((start..end, color))
13812 }
13813 }
13814 results
13815 }
13816
13817 pub fn background_highlight_row_ranges<T: 'static>(
13818 &self,
13819 search_range: Range<Anchor>,
13820 display_snapshot: &DisplaySnapshot,
13821 count: usize,
13822 ) -> Vec<RangeInclusive<DisplayPoint>> {
13823 let mut results = Vec::new();
13824 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
13825 return vec![];
13826 };
13827
13828 let start_ix = match ranges.binary_search_by(|probe| {
13829 let cmp = probe
13830 .end
13831 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
13832 if cmp.is_gt() {
13833 Ordering::Greater
13834 } else {
13835 Ordering::Less
13836 }
13837 }) {
13838 Ok(i) | Err(i) => i,
13839 };
13840 let mut push_region = |start: Option<Point>, end: Option<Point>| {
13841 if let (Some(start_display), Some(end_display)) = (start, end) {
13842 results.push(
13843 start_display.to_display_point(display_snapshot)
13844 ..=end_display.to_display_point(display_snapshot),
13845 );
13846 }
13847 };
13848 let mut start_row: Option<Point> = None;
13849 let mut end_row: Option<Point> = None;
13850 if ranges.len() > count {
13851 return Vec::new();
13852 }
13853 for range in &ranges[start_ix..] {
13854 if range
13855 .start
13856 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
13857 .is_ge()
13858 {
13859 break;
13860 }
13861 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
13862 if let Some(current_row) = &end_row {
13863 if end.row == current_row.row {
13864 continue;
13865 }
13866 }
13867 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
13868 if start_row.is_none() {
13869 assert_eq!(end_row, None);
13870 start_row = Some(start);
13871 end_row = Some(end);
13872 continue;
13873 }
13874 if let Some(current_end) = end_row.as_mut() {
13875 if start.row > current_end.row + 1 {
13876 push_region(start_row, end_row);
13877 start_row = Some(start);
13878 end_row = Some(end);
13879 } else {
13880 // Merge two hunks.
13881 *current_end = end;
13882 }
13883 } else {
13884 unreachable!();
13885 }
13886 }
13887 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
13888 push_region(start_row, end_row);
13889 results
13890 }
13891
13892 pub fn gutter_highlights_in_range(
13893 &self,
13894 search_range: Range<Anchor>,
13895 display_snapshot: &DisplaySnapshot,
13896 cx: &App,
13897 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
13898 let mut results = Vec::new();
13899 for (color_fetcher, ranges) in self.gutter_highlights.values() {
13900 let color = color_fetcher(cx);
13901 let start_ix = match ranges.binary_search_by(|probe| {
13902 let cmp = probe
13903 .end
13904 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
13905 if cmp.is_gt() {
13906 Ordering::Greater
13907 } else {
13908 Ordering::Less
13909 }
13910 }) {
13911 Ok(i) | Err(i) => i,
13912 };
13913 for range in &ranges[start_ix..] {
13914 if range
13915 .start
13916 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
13917 .is_ge()
13918 {
13919 break;
13920 }
13921
13922 let start = range.start.to_display_point(display_snapshot);
13923 let end = range.end.to_display_point(display_snapshot);
13924 results.push((start..end, color))
13925 }
13926 }
13927 results
13928 }
13929
13930 /// Get the text ranges corresponding to the redaction query
13931 pub fn redacted_ranges(
13932 &self,
13933 search_range: Range<Anchor>,
13934 display_snapshot: &DisplaySnapshot,
13935 cx: &App,
13936 ) -> Vec<Range<DisplayPoint>> {
13937 display_snapshot
13938 .buffer_snapshot
13939 .redacted_ranges(search_range, |file| {
13940 if let Some(file) = file {
13941 file.is_private()
13942 && EditorSettings::get(
13943 Some(SettingsLocation {
13944 worktree_id: file.worktree_id(cx),
13945 path: file.path().as_ref(),
13946 }),
13947 cx,
13948 )
13949 .redact_private_values
13950 } else {
13951 false
13952 }
13953 })
13954 .map(|range| {
13955 range.start.to_display_point(display_snapshot)
13956 ..range.end.to_display_point(display_snapshot)
13957 })
13958 .collect()
13959 }
13960
13961 pub fn highlight_text<T: 'static>(
13962 &mut self,
13963 ranges: Vec<Range<Anchor>>,
13964 style: HighlightStyle,
13965 cx: &mut Context<Self>,
13966 ) {
13967 self.display_map.update(cx, |map, _| {
13968 map.highlight_text(TypeId::of::<T>(), ranges, style)
13969 });
13970 cx.notify();
13971 }
13972
13973 pub(crate) fn highlight_inlays<T: 'static>(
13974 &mut self,
13975 highlights: Vec<InlayHighlight>,
13976 style: HighlightStyle,
13977 cx: &mut Context<Self>,
13978 ) {
13979 self.display_map.update(cx, |map, _| {
13980 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
13981 });
13982 cx.notify();
13983 }
13984
13985 pub fn text_highlights<'a, T: 'static>(
13986 &'a self,
13987 cx: &'a App,
13988 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
13989 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
13990 }
13991
13992 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut Context<Self>) {
13993 let cleared = self
13994 .display_map
13995 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
13996 if cleared {
13997 cx.notify();
13998 }
13999 }
14000
14001 pub fn show_local_cursors(&self, window: &mut Window, cx: &mut App) -> bool {
14002 (self.read_only(cx) || self.blink_manager.read(cx).visible())
14003 && self.focus_handle.is_focused(window)
14004 }
14005
14006 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut Context<Self>) {
14007 self.show_cursor_when_unfocused = is_enabled;
14008 cx.notify();
14009 }
14010
14011 pub fn lsp_store(&self, cx: &App) -> Option<Entity<LspStore>> {
14012 self.project
14013 .as_ref()
14014 .map(|project| project.read(cx).lsp_store())
14015 }
14016
14017 fn on_buffer_changed(&mut self, _: Entity<MultiBuffer>, cx: &mut Context<Self>) {
14018 cx.notify();
14019 }
14020
14021 fn on_buffer_event(
14022 &mut self,
14023 multibuffer: &Entity<MultiBuffer>,
14024 event: &multi_buffer::Event,
14025 window: &mut Window,
14026 cx: &mut Context<Self>,
14027 ) {
14028 match event {
14029 multi_buffer::Event::Edited {
14030 singleton_buffer_edited,
14031 edited_buffer: buffer_edited,
14032 } => {
14033 self.scrollbar_marker_state.dirty = true;
14034 self.active_indent_guides_state.dirty = true;
14035 self.refresh_active_diagnostics(cx);
14036 self.refresh_code_actions(window, cx);
14037 if self.has_active_inline_completion() {
14038 self.update_visible_inline_completion(window, cx);
14039 }
14040 if let Some(buffer) = buffer_edited {
14041 let buffer_id = buffer.read(cx).remote_id();
14042 if !self.registered_buffers.contains_key(&buffer_id) {
14043 if let Some(lsp_store) = self.lsp_store(cx) {
14044 lsp_store.update(cx, |lsp_store, cx| {
14045 self.registered_buffers.insert(
14046 buffer_id,
14047 lsp_store.register_buffer_with_language_servers(&buffer, cx),
14048 );
14049 })
14050 }
14051 }
14052 }
14053 cx.emit(EditorEvent::BufferEdited);
14054 cx.emit(SearchEvent::MatchesInvalidated);
14055 if *singleton_buffer_edited {
14056 if let Some(project) = &self.project {
14057 let project = project.read(cx);
14058 #[allow(clippy::mutable_key_type)]
14059 let languages_affected = multibuffer
14060 .read(cx)
14061 .all_buffers()
14062 .into_iter()
14063 .filter_map(|buffer| {
14064 let buffer = buffer.read(cx);
14065 let language = buffer.language()?;
14066 if project.is_local()
14067 && project
14068 .language_servers_for_local_buffer(buffer, cx)
14069 .count()
14070 == 0
14071 {
14072 None
14073 } else {
14074 Some(language)
14075 }
14076 })
14077 .cloned()
14078 .collect::<HashSet<_>>();
14079 if !languages_affected.is_empty() {
14080 self.refresh_inlay_hints(
14081 InlayHintRefreshReason::BufferEdited(languages_affected),
14082 cx,
14083 );
14084 }
14085 }
14086 }
14087
14088 let Some(project) = &self.project else { return };
14089 let (telemetry, is_via_ssh) = {
14090 let project = project.read(cx);
14091 let telemetry = project.client().telemetry().clone();
14092 let is_via_ssh = project.is_via_ssh();
14093 (telemetry, is_via_ssh)
14094 };
14095 refresh_linked_ranges(self, window, cx);
14096 telemetry.log_edit_event("editor", is_via_ssh);
14097 }
14098 multi_buffer::Event::ExcerptsAdded {
14099 buffer,
14100 predecessor,
14101 excerpts,
14102 } => {
14103 self.tasks_update_task = Some(self.refresh_runnables(window, cx));
14104 let buffer_id = buffer.read(cx).remote_id();
14105 if self.buffer.read(cx).diff_for(buffer_id).is_none() {
14106 if let Some(project) = &self.project {
14107 get_uncommitted_diff_for_buffer(
14108 project,
14109 [buffer.clone()],
14110 self.buffer.clone(),
14111 cx,
14112 );
14113 }
14114 }
14115 cx.emit(EditorEvent::ExcerptsAdded {
14116 buffer: buffer.clone(),
14117 predecessor: *predecessor,
14118 excerpts: excerpts.clone(),
14119 });
14120 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
14121 }
14122 multi_buffer::Event::ExcerptsRemoved { ids } => {
14123 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
14124 let buffer = self.buffer.read(cx);
14125 self.registered_buffers
14126 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
14127 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
14128 }
14129 multi_buffer::Event::ExcerptsEdited { ids } => {
14130 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
14131 }
14132 multi_buffer::Event::ExcerptsExpanded { ids } => {
14133 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
14134 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
14135 }
14136 multi_buffer::Event::Reparsed(buffer_id) => {
14137 self.tasks_update_task = Some(self.refresh_runnables(window, cx));
14138
14139 cx.emit(EditorEvent::Reparsed(*buffer_id));
14140 }
14141 multi_buffer::Event::DiffHunksToggled => {
14142 self.tasks_update_task = Some(self.refresh_runnables(window, cx));
14143 }
14144 multi_buffer::Event::LanguageChanged(buffer_id) => {
14145 linked_editing_ranges::refresh_linked_ranges(self, window, cx);
14146 cx.emit(EditorEvent::Reparsed(*buffer_id));
14147 cx.notify();
14148 }
14149 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
14150 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
14151 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
14152 cx.emit(EditorEvent::TitleChanged)
14153 }
14154 // multi_buffer::Event::DiffBaseChanged => {
14155 // self.scrollbar_marker_state.dirty = true;
14156 // cx.emit(EditorEvent::DiffBaseChanged);
14157 // cx.notify();
14158 // }
14159 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
14160 multi_buffer::Event::DiagnosticsUpdated => {
14161 self.refresh_active_diagnostics(cx);
14162 self.scrollbar_marker_state.dirty = true;
14163 cx.notify();
14164 }
14165 _ => {}
14166 };
14167 }
14168
14169 fn on_display_map_changed(
14170 &mut self,
14171 _: Entity<DisplayMap>,
14172 _: &mut Window,
14173 cx: &mut Context<Self>,
14174 ) {
14175 cx.notify();
14176 }
14177
14178 fn settings_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
14179 self.tasks_update_task = Some(self.refresh_runnables(window, cx));
14180 self.refresh_inline_completion(true, false, window, cx);
14181 self.refresh_inlay_hints(
14182 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
14183 self.selections.newest_anchor().head(),
14184 &self.buffer.read(cx).snapshot(cx),
14185 cx,
14186 )),
14187 cx,
14188 );
14189
14190 let old_cursor_shape = self.cursor_shape;
14191
14192 {
14193 let editor_settings = EditorSettings::get_global(cx);
14194 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
14195 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
14196 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
14197 }
14198
14199 if old_cursor_shape != self.cursor_shape {
14200 cx.emit(EditorEvent::CursorShapeChanged);
14201 }
14202
14203 let project_settings = ProjectSettings::get_global(cx);
14204 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
14205
14206 if self.mode == EditorMode::Full {
14207 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
14208 if self.git_blame_inline_enabled != inline_blame_enabled {
14209 self.toggle_git_blame_inline_internal(false, window, cx);
14210 }
14211 }
14212
14213 cx.notify();
14214 }
14215
14216 pub fn set_searchable(&mut self, searchable: bool) {
14217 self.searchable = searchable;
14218 }
14219
14220 pub fn searchable(&self) -> bool {
14221 self.searchable
14222 }
14223
14224 fn open_proposed_changes_editor(
14225 &mut self,
14226 _: &OpenProposedChangesEditor,
14227 window: &mut Window,
14228 cx: &mut Context<Self>,
14229 ) {
14230 let Some(workspace) = self.workspace() else {
14231 cx.propagate();
14232 return;
14233 };
14234
14235 let selections = self.selections.all::<usize>(cx);
14236 let multi_buffer = self.buffer.read(cx);
14237 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
14238 let mut new_selections_by_buffer = HashMap::default();
14239 for selection in selections {
14240 for (buffer, range, _) in
14241 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
14242 {
14243 let mut range = range.to_point(buffer);
14244 range.start.column = 0;
14245 range.end.column = buffer.line_len(range.end.row);
14246 new_selections_by_buffer
14247 .entry(multi_buffer.buffer(buffer.remote_id()).unwrap())
14248 .or_insert(Vec::new())
14249 .push(range)
14250 }
14251 }
14252
14253 let proposed_changes_buffers = new_selections_by_buffer
14254 .into_iter()
14255 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
14256 .collect::<Vec<_>>();
14257 let proposed_changes_editor = cx.new(|cx| {
14258 ProposedChangesEditor::new(
14259 "Proposed changes",
14260 proposed_changes_buffers,
14261 self.project.clone(),
14262 window,
14263 cx,
14264 )
14265 });
14266
14267 window.defer(cx, move |window, cx| {
14268 workspace.update(cx, |workspace, cx| {
14269 workspace.active_pane().update(cx, |pane, cx| {
14270 pane.add_item(
14271 Box::new(proposed_changes_editor),
14272 true,
14273 true,
14274 None,
14275 window,
14276 cx,
14277 );
14278 });
14279 });
14280 });
14281 }
14282
14283 pub fn open_excerpts_in_split(
14284 &mut self,
14285 _: &OpenExcerptsSplit,
14286 window: &mut Window,
14287 cx: &mut Context<Self>,
14288 ) {
14289 self.open_excerpts_common(None, true, window, cx)
14290 }
14291
14292 pub fn open_excerpts(&mut self, _: &OpenExcerpts, window: &mut Window, cx: &mut Context<Self>) {
14293 self.open_excerpts_common(None, false, window, cx)
14294 }
14295
14296 fn open_excerpts_common(
14297 &mut self,
14298 jump_data: Option<JumpData>,
14299 split: bool,
14300 window: &mut Window,
14301 cx: &mut Context<Self>,
14302 ) {
14303 let Some(workspace) = self.workspace() else {
14304 cx.propagate();
14305 return;
14306 };
14307
14308 if self.buffer.read(cx).is_singleton() {
14309 cx.propagate();
14310 return;
14311 }
14312
14313 let mut new_selections_by_buffer = HashMap::default();
14314 match &jump_data {
14315 Some(JumpData::MultiBufferPoint {
14316 excerpt_id,
14317 position,
14318 anchor,
14319 line_offset_from_top,
14320 }) => {
14321 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
14322 if let Some(buffer) = multi_buffer_snapshot
14323 .buffer_id_for_excerpt(*excerpt_id)
14324 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
14325 {
14326 let buffer_snapshot = buffer.read(cx).snapshot();
14327 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
14328 language::ToPoint::to_point(anchor, &buffer_snapshot)
14329 } else {
14330 buffer_snapshot.clip_point(*position, Bias::Left)
14331 };
14332 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
14333 new_selections_by_buffer.insert(
14334 buffer,
14335 (
14336 vec![jump_to_offset..jump_to_offset],
14337 Some(*line_offset_from_top),
14338 ),
14339 );
14340 }
14341 }
14342 Some(JumpData::MultiBufferRow {
14343 row,
14344 line_offset_from_top,
14345 }) => {
14346 let point = MultiBufferPoint::new(row.0, 0);
14347 if let Some((buffer, buffer_point, _)) =
14348 self.buffer.read(cx).point_to_buffer_point(point, cx)
14349 {
14350 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
14351 new_selections_by_buffer
14352 .entry(buffer)
14353 .or_insert((Vec::new(), Some(*line_offset_from_top)))
14354 .0
14355 .push(buffer_offset..buffer_offset)
14356 }
14357 }
14358 None => {
14359 let selections = self.selections.all::<usize>(cx);
14360 let multi_buffer = self.buffer.read(cx);
14361 for selection in selections {
14362 for (buffer, mut range, _) in multi_buffer
14363 .snapshot(cx)
14364 .range_to_buffer_ranges(selection.range())
14365 {
14366 // When editing branch buffers, jump to the corresponding location
14367 // in their base buffer.
14368 let mut buffer_handle = multi_buffer.buffer(buffer.remote_id()).unwrap();
14369 let buffer = buffer_handle.read(cx);
14370 if let Some(base_buffer) = buffer.base_buffer() {
14371 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
14372 buffer_handle = base_buffer;
14373 }
14374
14375 if selection.reversed {
14376 mem::swap(&mut range.start, &mut range.end);
14377 }
14378 new_selections_by_buffer
14379 .entry(buffer_handle)
14380 .or_insert((Vec::new(), None))
14381 .0
14382 .push(range)
14383 }
14384 }
14385 }
14386 }
14387
14388 if new_selections_by_buffer.is_empty() {
14389 return;
14390 }
14391
14392 // We defer the pane interaction because we ourselves are a workspace item
14393 // and activating a new item causes the pane to call a method on us reentrantly,
14394 // which panics if we're on the stack.
14395 window.defer(cx, move |window, cx| {
14396 workspace.update(cx, |workspace, cx| {
14397 let pane = if split {
14398 workspace.adjacent_pane(window, cx)
14399 } else {
14400 workspace.active_pane().clone()
14401 };
14402
14403 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
14404 let editor = buffer
14405 .read(cx)
14406 .file()
14407 .is_none()
14408 .then(|| {
14409 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
14410 // so `workspace.open_project_item` will never find them, always opening a new editor.
14411 // Instead, we try to activate the existing editor in the pane first.
14412 let (editor, pane_item_index) =
14413 pane.read(cx).items().enumerate().find_map(|(i, item)| {
14414 let editor = item.downcast::<Editor>()?;
14415 let singleton_buffer =
14416 editor.read(cx).buffer().read(cx).as_singleton()?;
14417 if singleton_buffer == buffer {
14418 Some((editor, i))
14419 } else {
14420 None
14421 }
14422 })?;
14423 pane.update(cx, |pane, cx| {
14424 pane.activate_item(pane_item_index, true, true, window, cx)
14425 });
14426 Some(editor)
14427 })
14428 .flatten()
14429 .unwrap_or_else(|| {
14430 workspace.open_project_item::<Self>(
14431 pane.clone(),
14432 buffer,
14433 true,
14434 true,
14435 window,
14436 cx,
14437 )
14438 });
14439
14440 editor.update(cx, |editor, cx| {
14441 let autoscroll = match scroll_offset {
14442 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
14443 None => Autoscroll::newest(),
14444 };
14445 let nav_history = editor.nav_history.take();
14446 editor.change_selections(Some(autoscroll), window, cx, |s| {
14447 s.select_ranges(ranges);
14448 });
14449 editor.nav_history = nav_history;
14450 });
14451 }
14452 })
14453 });
14454 }
14455
14456 fn marked_text_ranges(&self, cx: &App) -> Option<Vec<Range<OffsetUtf16>>> {
14457 let snapshot = self.buffer.read(cx).read(cx);
14458 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
14459 Some(
14460 ranges
14461 .iter()
14462 .map(move |range| {
14463 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
14464 })
14465 .collect(),
14466 )
14467 }
14468
14469 fn selection_replacement_ranges(
14470 &self,
14471 range: Range<OffsetUtf16>,
14472 cx: &mut App,
14473 ) -> Vec<Range<OffsetUtf16>> {
14474 let selections = self.selections.all::<OffsetUtf16>(cx);
14475 let newest_selection = selections
14476 .iter()
14477 .max_by_key(|selection| selection.id)
14478 .unwrap();
14479 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
14480 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
14481 let snapshot = self.buffer.read(cx).read(cx);
14482 selections
14483 .into_iter()
14484 .map(|mut selection| {
14485 selection.start.0 =
14486 (selection.start.0 as isize).saturating_add(start_delta) as usize;
14487 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
14488 snapshot.clip_offset_utf16(selection.start, Bias::Left)
14489 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
14490 })
14491 .collect()
14492 }
14493
14494 fn report_editor_event(
14495 &self,
14496 event_type: &'static str,
14497 file_extension: Option<String>,
14498 cx: &App,
14499 ) {
14500 if cfg!(any(test, feature = "test-support")) {
14501 return;
14502 }
14503
14504 let Some(project) = &self.project else { return };
14505
14506 // If None, we are in a file without an extension
14507 let file = self
14508 .buffer
14509 .read(cx)
14510 .as_singleton()
14511 .and_then(|b| b.read(cx).file());
14512 let file_extension = file_extension.or(file
14513 .as_ref()
14514 .and_then(|file| Path::new(file.file_name(cx)).extension())
14515 .and_then(|e| e.to_str())
14516 .map(|a| a.to_string()));
14517
14518 let vim_mode = cx
14519 .global::<SettingsStore>()
14520 .raw_user_settings()
14521 .get("vim_mode")
14522 == Some(&serde_json::Value::Bool(true));
14523
14524 let edit_predictions_provider = all_language_settings(file, cx).edit_predictions.provider;
14525 let copilot_enabled = edit_predictions_provider
14526 == language::language_settings::EditPredictionProvider::Copilot;
14527 let copilot_enabled_for_language = self
14528 .buffer
14529 .read(cx)
14530 .settings_at(0, cx)
14531 .show_edit_predictions;
14532
14533 let project = project.read(cx);
14534 telemetry::event!(
14535 event_type,
14536 file_extension,
14537 vim_mode,
14538 copilot_enabled,
14539 copilot_enabled_for_language,
14540 edit_predictions_provider,
14541 is_via_ssh = project.is_via_ssh(),
14542 );
14543 }
14544
14545 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
14546 /// with each line being an array of {text, highlight} objects.
14547 fn copy_highlight_json(
14548 &mut self,
14549 _: &CopyHighlightJson,
14550 window: &mut Window,
14551 cx: &mut Context<Self>,
14552 ) {
14553 #[derive(Serialize)]
14554 struct Chunk<'a> {
14555 text: String,
14556 highlight: Option<&'a str>,
14557 }
14558
14559 let snapshot = self.buffer.read(cx).snapshot(cx);
14560 let range = self
14561 .selected_text_range(false, window, cx)
14562 .and_then(|selection| {
14563 if selection.range.is_empty() {
14564 None
14565 } else {
14566 Some(selection.range)
14567 }
14568 })
14569 .unwrap_or_else(|| 0..snapshot.len());
14570
14571 let chunks = snapshot.chunks(range, true);
14572 let mut lines = Vec::new();
14573 let mut line: VecDeque<Chunk> = VecDeque::new();
14574
14575 let Some(style) = self.style.as_ref() else {
14576 return;
14577 };
14578
14579 for chunk in chunks {
14580 let highlight = chunk
14581 .syntax_highlight_id
14582 .and_then(|id| id.name(&style.syntax));
14583 let mut chunk_lines = chunk.text.split('\n').peekable();
14584 while let Some(text) = chunk_lines.next() {
14585 let mut merged_with_last_token = false;
14586 if let Some(last_token) = line.back_mut() {
14587 if last_token.highlight == highlight {
14588 last_token.text.push_str(text);
14589 merged_with_last_token = true;
14590 }
14591 }
14592
14593 if !merged_with_last_token {
14594 line.push_back(Chunk {
14595 text: text.into(),
14596 highlight,
14597 });
14598 }
14599
14600 if chunk_lines.peek().is_some() {
14601 if line.len() > 1 && line.front().unwrap().text.is_empty() {
14602 line.pop_front();
14603 }
14604 if line.len() > 1 && line.back().unwrap().text.is_empty() {
14605 line.pop_back();
14606 }
14607
14608 lines.push(mem::take(&mut line));
14609 }
14610 }
14611 }
14612
14613 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
14614 return;
14615 };
14616 cx.write_to_clipboard(ClipboardItem::new_string(lines));
14617 }
14618
14619 pub fn open_context_menu(
14620 &mut self,
14621 _: &OpenContextMenu,
14622 window: &mut Window,
14623 cx: &mut Context<Self>,
14624 ) {
14625 self.request_autoscroll(Autoscroll::newest(), cx);
14626 let position = self.selections.newest_display(cx).start;
14627 mouse_context_menu::deploy_context_menu(self, None, position, window, cx);
14628 }
14629
14630 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
14631 &self.inlay_hint_cache
14632 }
14633
14634 pub fn replay_insert_event(
14635 &mut self,
14636 text: &str,
14637 relative_utf16_range: Option<Range<isize>>,
14638 window: &mut Window,
14639 cx: &mut Context<Self>,
14640 ) {
14641 if !self.input_enabled {
14642 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14643 return;
14644 }
14645 if let Some(relative_utf16_range) = relative_utf16_range {
14646 let selections = self.selections.all::<OffsetUtf16>(cx);
14647 self.change_selections(None, window, cx, |s| {
14648 let new_ranges = selections.into_iter().map(|range| {
14649 let start = OffsetUtf16(
14650 range
14651 .head()
14652 .0
14653 .saturating_add_signed(relative_utf16_range.start),
14654 );
14655 let end = OffsetUtf16(
14656 range
14657 .head()
14658 .0
14659 .saturating_add_signed(relative_utf16_range.end),
14660 );
14661 start..end
14662 });
14663 s.select_ranges(new_ranges);
14664 });
14665 }
14666
14667 self.handle_input(text, window, cx);
14668 }
14669
14670 pub fn supports_inlay_hints(&self, cx: &App) -> bool {
14671 let Some(provider) = self.semantics_provider.as_ref() else {
14672 return false;
14673 };
14674
14675 let mut supports = false;
14676 self.buffer().read(cx).for_each_buffer(|buffer| {
14677 supports |= provider.supports_inlay_hints(buffer, cx);
14678 });
14679 supports
14680 }
14681
14682 pub fn is_focused(&self, window: &Window) -> bool {
14683 self.focus_handle.is_focused(window)
14684 }
14685
14686 fn handle_focus(&mut self, window: &mut Window, cx: &mut Context<Self>) {
14687 cx.emit(EditorEvent::Focused);
14688
14689 if let Some(descendant) = self
14690 .last_focused_descendant
14691 .take()
14692 .and_then(|descendant| descendant.upgrade())
14693 {
14694 window.focus(&descendant);
14695 } else {
14696 if let Some(blame) = self.blame.as_ref() {
14697 blame.update(cx, GitBlame::focus)
14698 }
14699
14700 self.blink_manager.update(cx, BlinkManager::enable);
14701 self.show_cursor_names(window, cx);
14702 self.buffer.update(cx, |buffer, cx| {
14703 buffer.finalize_last_transaction(cx);
14704 if self.leader_peer_id.is_none() {
14705 buffer.set_active_selections(
14706 &self.selections.disjoint_anchors(),
14707 self.selections.line_mode,
14708 self.cursor_shape,
14709 cx,
14710 );
14711 }
14712 });
14713 }
14714 }
14715
14716 fn handle_focus_in(&mut self, _: &mut Window, cx: &mut Context<Self>) {
14717 cx.emit(EditorEvent::FocusedIn)
14718 }
14719
14720 fn handle_focus_out(
14721 &mut self,
14722 event: FocusOutEvent,
14723 _window: &mut Window,
14724 _cx: &mut Context<Self>,
14725 ) {
14726 if event.blurred != self.focus_handle {
14727 self.last_focused_descendant = Some(event.blurred);
14728 }
14729 }
14730
14731 pub fn handle_blur(&mut self, window: &mut Window, cx: &mut Context<Self>) {
14732 self.blink_manager.update(cx, BlinkManager::disable);
14733 self.buffer
14734 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
14735
14736 if let Some(blame) = self.blame.as_ref() {
14737 blame.update(cx, GitBlame::blur)
14738 }
14739 if !self.hover_state.focused(window, cx) {
14740 hide_hover(self, cx);
14741 }
14742
14743 self.hide_context_menu(window, cx);
14744 self.discard_inline_completion(false, cx);
14745 cx.emit(EditorEvent::Blurred);
14746 cx.notify();
14747 }
14748
14749 pub fn register_action<A: Action>(
14750 &mut self,
14751 listener: impl Fn(&A, &mut Window, &mut App) + 'static,
14752 ) -> Subscription {
14753 let id = self.next_editor_action_id.post_inc();
14754 let listener = Arc::new(listener);
14755 self.editor_actions.borrow_mut().insert(
14756 id,
14757 Box::new(move |window, _| {
14758 let listener = listener.clone();
14759 window.on_action(TypeId::of::<A>(), move |action, phase, window, cx| {
14760 let action = action.downcast_ref().unwrap();
14761 if phase == DispatchPhase::Bubble {
14762 listener(action, window, cx)
14763 }
14764 })
14765 }),
14766 );
14767
14768 let editor_actions = self.editor_actions.clone();
14769 Subscription::new(move || {
14770 editor_actions.borrow_mut().remove(&id);
14771 })
14772 }
14773
14774 pub fn file_header_size(&self) -> u32 {
14775 FILE_HEADER_HEIGHT
14776 }
14777
14778 pub fn revert(
14779 &mut self,
14780 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
14781 window: &mut Window,
14782 cx: &mut Context<Self>,
14783 ) {
14784 self.buffer().update(cx, |multi_buffer, cx| {
14785 for (buffer_id, changes) in revert_changes {
14786 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
14787 buffer.update(cx, |buffer, cx| {
14788 buffer.edit(
14789 changes.into_iter().map(|(range, text)| {
14790 (range, text.to_string().map(Arc::<str>::from))
14791 }),
14792 None,
14793 cx,
14794 );
14795 });
14796 }
14797 }
14798 });
14799 self.change_selections(None, window, cx, |selections| selections.refresh());
14800 }
14801
14802 pub fn to_pixel_point(
14803 &self,
14804 source: multi_buffer::Anchor,
14805 editor_snapshot: &EditorSnapshot,
14806 window: &mut Window,
14807 ) -> Option<gpui::Point<Pixels>> {
14808 let source_point = source.to_display_point(editor_snapshot);
14809 self.display_to_pixel_point(source_point, editor_snapshot, window)
14810 }
14811
14812 pub fn display_to_pixel_point(
14813 &self,
14814 source: DisplayPoint,
14815 editor_snapshot: &EditorSnapshot,
14816 window: &mut Window,
14817 ) -> Option<gpui::Point<Pixels>> {
14818 let line_height = self.style()?.text.line_height_in_pixels(window.rem_size());
14819 let text_layout_details = self.text_layout_details(window);
14820 let scroll_top = text_layout_details
14821 .scroll_anchor
14822 .scroll_position(editor_snapshot)
14823 .y;
14824
14825 if source.row().as_f32() < scroll_top.floor() {
14826 return None;
14827 }
14828 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
14829 let source_y = line_height * (source.row().as_f32() - scroll_top);
14830 Some(gpui::Point::new(source_x, source_y))
14831 }
14832
14833 pub fn has_visible_completions_menu(&self) -> bool {
14834 !self.edit_prediction_preview_is_active()
14835 && self.context_menu.borrow().as_ref().map_or(false, |menu| {
14836 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
14837 })
14838 }
14839
14840 pub fn register_addon<T: Addon>(&mut self, instance: T) {
14841 self.addons
14842 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
14843 }
14844
14845 pub fn unregister_addon<T: Addon>(&mut self) {
14846 self.addons.remove(&std::any::TypeId::of::<T>());
14847 }
14848
14849 pub fn addon<T: Addon>(&self) -> Option<&T> {
14850 let type_id = std::any::TypeId::of::<T>();
14851 self.addons
14852 .get(&type_id)
14853 .and_then(|item| item.to_any().downcast_ref::<T>())
14854 }
14855
14856 fn character_size(&self, window: &mut Window) -> gpui::Size<Pixels> {
14857 let text_layout_details = self.text_layout_details(window);
14858 let style = &text_layout_details.editor_style;
14859 let font_id = window.text_system().resolve_font(&style.text.font());
14860 let font_size = style.text.font_size.to_pixels(window.rem_size());
14861 let line_height = style.text.line_height_in_pixels(window.rem_size());
14862 let em_width = window.text_system().em_width(font_id, font_size).unwrap();
14863
14864 gpui::Size::new(em_width, line_height)
14865 }
14866}
14867
14868fn get_uncommitted_diff_for_buffer(
14869 project: &Entity<Project>,
14870 buffers: impl IntoIterator<Item = Entity<Buffer>>,
14871 buffer: Entity<MultiBuffer>,
14872 cx: &mut App,
14873) {
14874 let mut tasks = Vec::new();
14875 project.update(cx, |project, cx| {
14876 for buffer in buffers {
14877 tasks.push(project.open_uncommitted_diff(buffer.clone(), cx))
14878 }
14879 });
14880 cx.spawn(|mut cx| async move {
14881 let diffs = futures::future::join_all(tasks).await;
14882 buffer
14883 .update(&mut cx, |buffer, cx| {
14884 for diff in diffs.into_iter().flatten() {
14885 buffer.add_diff(diff, cx);
14886 }
14887 })
14888 .ok();
14889 })
14890 .detach();
14891}
14892
14893fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
14894 let tab_size = tab_size.get() as usize;
14895 let mut width = offset;
14896
14897 for ch in text.chars() {
14898 width += if ch == '\t' {
14899 tab_size - (width % tab_size)
14900 } else {
14901 1
14902 };
14903 }
14904
14905 width - offset
14906}
14907
14908#[cfg(test)]
14909mod tests {
14910 use super::*;
14911
14912 #[test]
14913 fn test_string_size_with_expanded_tabs() {
14914 let nz = |val| NonZeroU32::new(val).unwrap();
14915 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
14916 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
14917 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
14918 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
14919 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
14920 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
14921 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
14922 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
14923 }
14924}
14925
14926/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
14927struct WordBreakingTokenizer<'a> {
14928 input: &'a str,
14929}
14930
14931impl<'a> WordBreakingTokenizer<'a> {
14932 fn new(input: &'a str) -> Self {
14933 Self { input }
14934 }
14935}
14936
14937fn is_char_ideographic(ch: char) -> bool {
14938 use unicode_script::Script::*;
14939 use unicode_script::UnicodeScript;
14940 matches!(ch.script(), Han | Tangut | Yi)
14941}
14942
14943fn is_grapheme_ideographic(text: &str) -> bool {
14944 text.chars().any(is_char_ideographic)
14945}
14946
14947fn is_grapheme_whitespace(text: &str) -> bool {
14948 text.chars().any(|x| x.is_whitespace())
14949}
14950
14951fn should_stay_with_preceding_ideograph(text: &str) -> bool {
14952 text.chars().next().map_or(false, |ch| {
14953 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
14954 })
14955}
14956
14957#[derive(PartialEq, Eq, Debug, Clone, Copy)]
14958struct WordBreakToken<'a> {
14959 token: &'a str,
14960 grapheme_len: usize,
14961 is_whitespace: bool,
14962}
14963
14964impl<'a> Iterator for WordBreakingTokenizer<'a> {
14965 /// Yields a span, the count of graphemes in the token, and whether it was
14966 /// whitespace. Note that it also breaks at word boundaries.
14967 type Item = WordBreakToken<'a>;
14968
14969 fn next(&mut self) -> Option<Self::Item> {
14970 use unicode_segmentation::UnicodeSegmentation;
14971 if self.input.is_empty() {
14972 return None;
14973 }
14974
14975 let mut iter = self.input.graphemes(true).peekable();
14976 let mut offset = 0;
14977 let mut graphemes = 0;
14978 if let Some(first_grapheme) = iter.next() {
14979 let is_whitespace = is_grapheme_whitespace(first_grapheme);
14980 offset += first_grapheme.len();
14981 graphemes += 1;
14982 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
14983 if let Some(grapheme) = iter.peek().copied() {
14984 if should_stay_with_preceding_ideograph(grapheme) {
14985 offset += grapheme.len();
14986 graphemes += 1;
14987 }
14988 }
14989 } else {
14990 let mut words = self.input[offset..].split_word_bound_indices().peekable();
14991 let mut next_word_bound = words.peek().copied();
14992 if next_word_bound.map_or(false, |(i, _)| i == 0) {
14993 next_word_bound = words.next();
14994 }
14995 while let Some(grapheme) = iter.peek().copied() {
14996 if next_word_bound.map_or(false, |(i, _)| i == offset) {
14997 break;
14998 };
14999 if is_grapheme_whitespace(grapheme) != is_whitespace {
15000 break;
15001 };
15002 offset += grapheme.len();
15003 graphemes += 1;
15004 iter.next();
15005 }
15006 }
15007 let token = &self.input[..offset];
15008 self.input = &self.input[offset..];
15009 if is_whitespace {
15010 Some(WordBreakToken {
15011 token: " ",
15012 grapheme_len: 1,
15013 is_whitespace: true,
15014 })
15015 } else {
15016 Some(WordBreakToken {
15017 token,
15018 grapheme_len: graphemes,
15019 is_whitespace: false,
15020 })
15021 }
15022 } else {
15023 None
15024 }
15025 }
15026}
15027
15028#[test]
15029fn test_word_breaking_tokenizer() {
15030 let tests: &[(&str, &[(&str, usize, bool)])] = &[
15031 ("", &[]),
15032 (" ", &[(" ", 1, true)]),
15033 ("Ʒ", &[("Ʒ", 1, false)]),
15034 ("Ǽ", &[("Ǽ", 1, false)]),
15035 ("⋑", &[("⋑", 1, false)]),
15036 ("⋑⋑", &[("⋑⋑", 2, false)]),
15037 (
15038 "原理，进而",
15039 &[
15040 ("原", 1, false),
15041 ("理，", 2, false),
15042 ("进", 1, false),
15043 ("而", 1, false),
15044 ],
15045 ),
15046 (
15047 "hello world",
15048 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
15049 ),
15050 (
15051 "hello, world",
15052 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
15053 ),
15054 (
15055 " hello world",
15056 &[
15057 (" ", 1, true),
15058 ("hello", 5, false),
15059 (" ", 1, true),
15060 ("world", 5, false),
15061 ],
15062 ),
15063 (
15064 "这是什么 \n 钢笔",
15065 &[
15066 ("这", 1, false),
15067 ("是", 1, false),
15068 ("什", 1, false),
15069 ("么", 1, false),
15070 (" ", 1, true),
15071 ("钢", 1, false),
15072 ("笔", 1, false),
15073 ],
15074 ),
15075 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
15076 ];
15077
15078 for (input, result) in tests {
15079 assert_eq!(
15080 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
15081 result
15082 .iter()
15083 .copied()
15084 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
15085 token,
15086 grapheme_len,
15087 is_whitespace,
15088 })
15089 .collect::<Vec<_>>()
15090 );
15091 }
15092}
15093
15094fn wrap_with_prefix(
15095 line_prefix: String,
15096 unwrapped_text: String,
15097 wrap_column: usize,
15098 tab_size: NonZeroU32,
15099) -> String {
15100 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
15101 let mut wrapped_text = String::new();
15102 let mut current_line = line_prefix.clone();
15103
15104 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
15105 let mut current_line_len = line_prefix_len;
15106 for WordBreakToken {
15107 token,
15108 grapheme_len,
15109 is_whitespace,
15110 } in tokenizer
15111 {
15112 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
15113 wrapped_text.push_str(current_line.trim_end());
15114 wrapped_text.push('\n');
15115 current_line.truncate(line_prefix.len());
15116 current_line_len = line_prefix_len;
15117 if !is_whitespace {
15118 current_line.push_str(token);
15119 current_line_len += grapheme_len;
15120 }
15121 } else if !is_whitespace {
15122 current_line.push_str(token);
15123 current_line_len += grapheme_len;
15124 } else if current_line_len != line_prefix_len {
15125 current_line.push(' ');
15126 current_line_len += 1;
15127 }
15128 }
15129
15130 if !current_line.is_empty() {
15131 wrapped_text.push_str(¤t_line);
15132 }
15133 wrapped_text
15134}
15135
15136#[test]
15137fn test_wrap_with_prefix() {
15138 assert_eq!(
15139 wrap_with_prefix(
15140 "# ".to_string(),
15141 "abcdefg".to_string(),
15142 4,
15143 NonZeroU32::new(4).unwrap()
15144 ),
15145 "# abcdefg"
15146 );
15147 assert_eq!(
15148 wrap_with_prefix(
15149 "".to_string(),
15150 "\thello world".to_string(),
15151 8,
15152 NonZeroU32::new(4).unwrap()
15153 ),
15154 "hello\nworld"
15155 );
15156 assert_eq!(
15157 wrap_with_prefix(
15158 "// ".to_string(),
15159 "xx \nyy zz aa bb cc".to_string(),
15160 12,
15161 NonZeroU32::new(4).unwrap()
15162 ),
15163 "// xx yy zz\n// aa bb cc"
15164 );
15165 assert_eq!(
15166 wrap_with_prefix(
15167 String::new(),
15168 "这是什么 \n 钢笔".to_string(),
15169 3,
15170 NonZeroU32::new(4).unwrap()
15171 ),
15172 "这是什\n么 钢\n笔"
15173 );
15174}
15175
15176pub trait CollaborationHub {
15177 fn collaborators<'a>(&self, cx: &'a App) -> &'a HashMap<PeerId, Collaborator>;
15178 fn user_participant_indices<'a>(&self, cx: &'a App) -> &'a HashMap<u64, ParticipantIndex>;
15179 fn user_names(&self, cx: &App) -> HashMap<u64, SharedString>;
15180}
15181
15182impl CollaborationHub for Entity<Project> {
15183 fn collaborators<'a>(&self, cx: &'a App) -> &'a HashMap<PeerId, Collaborator> {
15184 self.read(cx).collaborators()
15185 }
15186
15187 fn user_participant_indices<'a>(&self, cx: &'a App) -> &'a HashMap<u64, ParticipantIndex> {
15188 self.read(cx).user_store().read(cx).participant_indices()
15189 }
15190
15191 fn user_names(&self, cx: &App) -> HashMap<u64, SharedString> {
15192 let this = self.read(cx);
15193 let user_ids = this.collaborators().values().map(|c| c.user_id);
15194 this.user_store().read_with(cx, |user_store, cx| {
15195 user_store.participant_names(user_ids, cx)
15196 })
15197 }
15198}
15199
15200pub trait SemanticsProvider {
15201 fn hover(
15202 &self,
15203 buffer: &Entity<Buffer>,
15204 position: text::Anchor,
15205 cx: &mut App,
15206 ) -> Option<Task<Vec<project::Hover>>>;
15207
15208 fn inlay_hints(
15209 &self,
15210 buffer_handle: Entity<Buffer>,
15211 range: Range<text::Anchor>,
15212 cx: &mut App,
15213 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
15214
15215 fn resolve_inlay_hint(
15216 &self,
15217 hint: InlayHint,
15218 buffer_handle: Entity<Buffer>,
15219 server_id: LanguageServerId,
15220 cx: &mut App,
15221 ) -> Option<Task<anyhow::Result<InlayHint>>>;
15222
15223 fn supports_inlay_hints(&self, buffer: &Entity<Buffer>, cx: &App) -> bool;
15224
15225 fn document_highlights(
15226 &self,
15227 buffer: &Entity<Buffer>,
15228 position: text::Anchor,
15229 cx: &mut App,
15230 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
15231
15232 fn definitions(
15233 &self,
15234 buffer: &Entity<Buffer>,
15235 position: text::Anchor,
15236 kind: GotoDefinitionKind,
15237 cx: &mut App,
15238 ) -> Option<Task<Result<Vec<LocationLink>>>>;
15239
15240 fn range_for_rename(
15241 &self,
15242 buffer: &Entity<Buffer>,
15243 position: text::Anchor,
15244 cx: &mut App,
15245 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
15246
15247 fn perform_rename(
15248 &self,
15249 buffer: &Entity<Buffer>,
15250 position: text::Anchor,
15251 new_name: String,
15252 cx: &mut App,
15253 ) -> Option<Task<Result<ProjectTransaction>>>;
15254}
15255
15256pub trait CompletionProvider {
15257 fn completions(
15258 &self,
15259 buffer: &Entity<Buffer>,
15260 buffer_position: text::Anchor,
15261 trigger: CompletionContext,
15262 window: &mut Window,
15263 cx: &mut Context<Editor>,
15264 ) -> Task<Result<Vec<Completion>>>;
15265
15266 fn resolve_completions(
15267 &self,
15268 buffer: Entity<Buffer>,
15269 completion_indices: Vec<usize>,
15270 completions: Rc<RefCell<Box<[Completion]>>>,
15271 cx: &mut Context<Editor>,
15272 ) -> Task<Result<bool>>;
15273
15274 fn apply_additional_edits_for_completion(
15275 &self,
15276 _buffer: Entity<Buffer>,
15277 _completions: Rc<RefCell<Box<[Completion]>>>,
15278 _completion_index: usize,
15279 _push_to_history: bool,
15280 _cx: &mut Context<Editor>,
15281 ) -> Task<Result<Option<language::Transaction>>> {
15282 Task::ready(Ok(None))
15283 }
15284
15285 fn is_completion_trigger(
15286 &self,
15287 buffer: &Entity<Buffer>,
15288 position: language::Anchor,
15289 text: &str,
15290 trigger_in_words: bool,
15291 cx: &mut Context<Editor>,
15292 ) -> bool;
15293
15294 fn sort_completions(&self) -> bool {
15295 true
15296 }
15297}
15298
15299pub trait CodeActionProvider {
15300 fn id(&self) -> Arc<str>;
15301
15302 fn code_actions(
15303 &self,
15304 buffer: &Entity<Buffer>,
15305 range: Range<text::Anchor>,
15306 window: &mut Window,
15307 cx: &mut App,
15308 ) -> Task<Result<Vec<CodeAction>>>;
15309
15310 fn apply_code_action(
15311 &self,
15312 buffer_handle: Entity<Buffer>,
15313 action: CodeAction,
15314 excerpt_id: ExcerptId,
15315 push_to_history: bool,
15316 window: &mut Window,
15317 cx: &mut App,
15318 ) -> Task<Result<ProjectTransaction>>;
15319}
15320
15321impl CodeActionProvider for Entity<Project> {
15322 fn id(&self) -> Arc<str> {
15323 "project".into()
15324 }
15325
15326 fn code_actions(
15327 &self,
15328 buffer: &Entity<Buffer>,
15329 range: Range<text::Anchor>,
15330 _window: &mut Window,
15331 cx: &mut App,
15332 ) -> Task<Result<Vec<CodeAction>>> {
15333 self.update(cx, |project, cx| {
15334 project.code_actions(buffer, range, None, cx)
15335 })
15336 }
15337
15338 fn apply_code_action(
15339 &self,
15340 buffer_handle: Entity<Buffer>,
15341 action: CodeAction,
15342 _excerpt_id: ExcerptId,
15343 push_to_history: bool,
15344 _window: &mut Window,
15345 cx: &mut App,
15346 ) -> Task<Result<ProjectTransaction>> {
15347 self.update(cx, |project, cx| {
15348 project.apply_code_action(buffer_handle, action, push_to_history, cx)
15349 })
15350 }
15351}
15352
15353fn snippet_completions(
15354 project: &Project,
15355 buffer: &Entity<Buffer>,
15356 buffer_position: text::Anchor,
15357 cx: &mut App,
15358) -> Task<Result<Vec<Completion>>> {
15359 let language = buffer.read(cx).language_at(buffer_position);
15360 let language_name = language.as_ref().map(|language| language.lsp_id());
15361 let snippet_store = project.snippets().read(cx);
15362 let snippets = snippet_store.snippets_for(language_name, cx);
15363
15364 if snippets.is_empty() {
15365 return Task::ready(Ok(vec![]));
15366 }
15367 let snapshot = buffer.read(cx).text_snapshot();
15368 let chars: String = snapshot
15369 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
15370 .collect();
15371
15372 let scope = language.map(|language| language.default_scope());
15373 let executor = cx.background_executor().clone();
15374
15375 cx.background_executor().spawn(async move {
15376 let classifier = CharClassifier::new(scope).for_completion(true);
15377 let mut last_word = chars
15378 .chars()
15379 .take_while(|c| classifier.is_word(*c))
15380 .collect::<String>();
15381 last_word = last_word.chars().rev().collect();
15382
15383 if last_word.is_empty() {
15384 return Ok(vec![]);
15385 }
15386
15387 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
15388 let to_lsp = |point: &text::Anchor| {
15389 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
15390 point_to_lsp(end)
15391 };
15392 let lsp_end = to_lsp(&buffer_position);
15393
15394 let candidates = snippets
15395 .iter()
15396 .enumerate()
15397 .flat_map(|(ix, snippet)| {
15398 snippet
15399 .prefix
15400 .iter()
15401 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
15402 })
15403 .collect::<Vec<StringMatchCandidate>>();
15404
15405 let mut matches = fuzzy::match_strings(
15406 &candidates,
15407 &last_word,
15408 last_word.chars().any(|c| c.is_uppercase()),
15409 100,
15410 &Default::default(),
15411 executor,
15412 )
15413 .await;
15414
15415 // Remove all candidates where the query's start does not match the start of any word in the candidate
15416 if let Some(query_start) = last_word.chars().next() {
15417 matches.retain(|string_match| {
15418 split_words(&string_match.string).any(|word| {
15419 // Check that the first codepoint of the word as lowercase matches the first
15420 // codepoint of the query as lowercase
15421 word.chars()
15422 .flat_map(|codepoint| codepoint.to_lowercase())
15423 .zip(query_start.to_lowercase())
15424 .all(|(word_cp, query_cp)| word_cp == query_cp)
15425 })
15426 });
15427 }
15428
15429 let matched_strings = matches
15430 .into_iter()
15431 .map(|m| m.string)
15432 .collect::<HashSet<_>>();
15433
15434 let result: Vec<Completion> = snippets
15435 .into_iter()
15436 .filter_map(|snippet| {
15437 let matching_prefix = snippet
15438 .prefix
15439 .iter()
15440 .find(|prefix| matched_strings.contains(*prefix))?;
15441 let start = as_offset - last_word.len();
15442 let start = snapshot.anchor_before(start);
15443 let range = start..buffer_position;
15444 let lsp_start = to_lsp(&start);
15445 let lsp_range = lsp::Range {
15446 start: lsp_start,
15447 end: lsp_end,
15448 };
15449 Some(Completion {
15450 old_range: range,
15451 new_text: snippet.body.clone(),
15452 resolved: false,
15453 label: CodeLabel {
15454 text: matching_prefix.clone(),
15455 runs: vec![],
15456 filter_range: 0..matching_prefix.len(),
15457 },
15458 server_id: LanguageServerId(usize::MAX),
15459 documentation: snippet
15460 .description
15461 .clone()
15462 .map(CompletionDocumentation::SingleLine),
15463 lsp_completion: lsp::CompletionItem {
15464 label: snippet.prefix.first().unwrap().clone(),
15465 kind: Some(CompletionItemKind::SNIPPET),
15466 label_details: snippet.description.as_ref().map(|description| {
15467 lsp::CompletionItemLabelDetails {
15468 detail: Some(description.clone()),
15469 description: None,
15470 }
15471 }),
15472 insert_text_format: Some(InsertTextFormat::SNIPPET),
15473 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
15474 lsp::InsertReplaceEdit {
15475 new_text: snippet.body.clone(),
15476 insert: lsp_range,
15477 replace: lsp_range,
15478 },
15479 )),
15480 filter_text: Some(snippet.body.clone()),
15481 sort_text: Some(char::MAX.to_string()),
15482 ..Default::default()
15483 },
15484 confirm: None,
15485 })
15486 })
15487 .collect();
15488
15489 Ok(result)
15490 })
15491}
15492
15493impl CompletionProvider for Entity<Project> {
15494 fn completions(
15495 &self,
15496 buffer: &Entity<Buffer>,
15497 buffer_position: text::Anchor,
15498 options: CompletionContext,
15499 _window: &mut Window,
15500 cx: &mut Context<Editor>,
15501 ) -> Task<Result<Vec<Completion>>> {
15502 self.update(cx, |project, cx| {
15503 let snippets = snippet_completions(project, buffer, buffer_position, cx);
15504 let project_completions = project.completions(buffer, buffer_position, options, cx);
15505 cx.background_executor().spawn(async move {
15506 let mut completions = project_completions.await?;
15507 let snippets_completions = snippets.await?;
15508 completions.extend(snippets_completions);
15509 Ok(completions)
15510 })
15511 })
15512 }
15513
15514 fn resolve_completions(
15515 &self,
15516 buffer: Entity<Buffer>,
15517 completion_indices: Vec<usize>,
15518 completions: Rc<RefCell<Box<[Completion]>>>,
15519 cx: &mut Context<Editor>,
15520 ) -> Task<Result<bool>> {
15521 self.update(cx, |project, cx| {
15522 project.lsp_store().update(cx, |lsp_store, cx| {
15523 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
15524 })
15525 })
15526 }
15527
15528 fn apply_additional_edits_for_completion(
15529 &self,
15530 buffer: Entity<Buffer>,
15531 completions: Rc<RefCell<Box<[Completion]>>>,
15532 completion_index: usize,
15533 push_to_history: bool,
15534 cx: &mut Context<Editor>,
15535 ) -> Task<Result<Option<language::Transaction>>> {
15536 self.update(cx, |project, cx| {
15537 project.lsp_store().update(cx, |lsp_store, cx| {
15538 lsp_store.apply_additional_edits_for_completion(
15539 buffer,
15540 completions,
15541 completion_index,
15542 push_to_history,
15543 cx,
15544 )
15545 })
15546 })
15547 }
15548
15549 fn is_completion_trigger(
15550 &self,
15551 buffer: &Entity<Buffer>,
15552 position: language::Anchor,
15553 text: &str,
15554 trigger_in_words: bool,
15555 cx: &mut Context<Editor>,
15556 ) -> bool {
15557 let mut chars = text.chars();
15558 let char = if let Some(char) = chars.next() {
15559 char
15560 } else {
15561 return false;
15562 };
15563 if chars.next().is_some() {
15564 return false;
15565 }
15566
15567 let buffer = buffer.read(cx);
15568 let snapshot = buffer.snapshot();
15569 if !snapshot.settings_at(position, cx).show_completions_on_input {
15570 return false;
15571 }
15572 let classifier = snapshot.char_classifier_at(position).for_completion(true);
15573 if trigger_in_words && classifier.is_word(char) {
15574 return true;
15575 }
15576
15577 buffer.completion_triggers().contains(text)
15578 }
15579}
15580
15581impl SemanticsProvider for Entity<Project> {
15582 fn hover(
15583 &self,
15584 buffer: &Entity<Buffer>,
15585 position: text::Anchor,
15586 cx: &mut App,
15587 ) -> Option<Task<Vec<project::Hover>>> {
15588 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
15589 }
15590
15591 fn document_highlights(
15592 &self,
15593 buffer: &Entity<Buffer>,
15594 position: text::Anchor,
15595 cx: &mut App,
15596 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
15597 Some(self.update(cx, |project, cx| {
15598 project.document_highlights(buffer, position, cx)
15599 }))
15600 }
15601
15602 fn definitions(
15603 &self,
15604 buffer: &Entity<Buffer>,
15605 position: text::Anchor,
15606 kind: GotoDefinitionKind,
15607 cx: &mut App,
15608 ) -> Option<Task<Result<Vec<LocationLink>>>> {
15609 Some(self.update(cx, |project, cx| match kind {
15610 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
15611 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
15612 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
15613 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
15614 }))
15615 }
15616
15617 fn supports_inlay_hints(&self, buffer: &Entity<Buffer>, cx: &App) -> bool {
15618 // TODO: make this work for remote projects
15619 self.read(cx)
15620 .language_servers_for_local_buffer(buffer.read(cx), cx)
15621 .any(
15622 |(_, server)| match server.capabilities().inlay_hint_provider {
15623 Some(lsp::OneOf::Left(enabled)) => enabled,
15624 Some(lsp::OneOf::Right(_)) => true,
15625 None => false,
15626 },
15627 )
15628 }
15629
15630 fn inlay_hints(
15631 &self,
15632 buffer_handle: Entity<Buffer>,
15633 range: Range<text::Anchor>,
15634 cx: &mut App,
15635 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
15636 Some(self.update(cx, |project, cx| {
15637 project.inlay_hints(buffer_handle, range, cx)
15638 }))
15639 }
15640
15641 fn resolve_inlay_hint(
15642 &self,
15643 hint: InlayHint,
15644 buffer_handle: Entity<Buffer>,
15645 server_id: LanguageServerId,
15646 cx: &mut App,
15647 ) -> Option<Task<anyhow::Result<InlayHint>>> {
15648 Some(self.update(cx, |project, cx| {
15649 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
15650 }))
15651 }
15652
15653 fn range_for_rename(
15654 &self,
15655 buffer: &Entity<Buffer>,
15656 position: text::Anchor,
15657 cx: &mut App,
15658 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
15659 Some(self.update(cx, |project, cx| {
15660 let buffer = buffer.clone();
15661 let task = project.prepare_rename(buffer.clone(), position, cx);
15662 cx.spawn(|_, mut cx| async move {
15663 Ok(match task.await? {
15664 PrepareRenameResponse::Success(range) => Some(range),
15665 PrepareRenameResponse::InvalidPosition => None,
15666 PrepareRenameResponse::OnlyUnpreparedRenameSupported => {
15667 // Fallback on using TreeSitter info to determine identifier range
15668 buffer.update(&mut cx, |buffer, _| {
15669 let snapshot = buffer.snapshot();
15670 let (range, kind) = snapshot.surrounding_word(position);
15671 if kind != Some(CharKind::Word) {
15672 return None;
15673 }
15674 Some(
15675 snapshot.anchor_before(range.start)
15676 ..snapshot.anchor_after(range.end),
15677 )
15678 })?
15679 }
15680 })
15681 })
15682 }))
15683 }
15684
15685 fn perform_rename(
15686 &self,
15687 buffer: &Entity<Buffer>,
15688 position: text::Anchor,
15689 new_name: String,
15690 cx: &mut App,
15691 ) -> Option<Task<Result<ProjectTransaction>>> {
15692 Some(self.update(cx, |project, cx| {
15693 project.perform_rename(buffer.clone(), position, new_name, cx)
15694 }))
15695 }
15696}
15697
15698fn inlay_hint_settings(
15699 location: Anchor,
15700 snapshot: &MultiBufferSnapshot,
15701 cx: &mut Context<Editor>,
15702) -> InlayHintSettings {
15703 let file = snapshot.file_at(location);
15704 let language = snapshot.language_at(location).map(|l| l.name());
15705 language_settings(language, file, cx).inlay_hints
15706}
15707
15708fn consume_contiguous_rows(
15709 contiguous_row_selections: &mut Vec<Selection<Point>>,
15710 selection: &Selection<Point>,
15711 display_map: &DisplaySnapshot,
15712 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
15713) -> (MultiBufferRow, MultiBufferRow) {
15714 contiguous_row_selections.push(selection.clone());
15715 let start_row = MultiBufferRow(selection.start.row);
15716 let mut end_row = ending_row(selection, display_map);
15717
15718 while let Some(next_selection) = selections.peek() {
15719 if next_selection.start.row <= end_row.0 {
15720 end_row = ending_row(next_selection, display_map);
15721 contiguous_row_selections.push(selections.next().unwrap().clone());
15722 } else {
15723 break;
15724 }
15725 }
15726 (start_row, end_row)
15727}
15728
15729fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
15730 if next_selection.end.column > 0 || next_selection.is_empty() {
15731 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
15732 } else {
15733 MultiBufferRow(next_selection.end.row)
15734 }
15735}
15736
15737impl EditorSnapshot {
15738 pub fn remote_selections_in_range<'a>(
15739 &'a self,
15740 range: &'a Range<Anchor>,
15741 collaboration_hub: &dyn CollaborationHub,
15742 cx: &'a App,
15743 ) -> impl 'a + Iterator<Item = RemoteSelection> {
15744 let participant_names = collaboration_hub.user_names(cx);
15745 let participant_indices = collaboration_hub.user_participant_indices(cx);
15746 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
15747 let collaborators_by_replica_id = collaborators_by_peer_id
15748 .iter()
15749 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
15750 .collect::<HashMap<_, _>>();
15751 self.buffer_snapshot
15752 .selections_in_range(range, false)
15753 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
15754 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
15755 let participant_index = participant_indices.get(&collaborator.user_id).copied();
15756 let user_name = participant_names.get(&collaborator.user_id).cloned();
15757 Some(RemoteSelection {
15758 replica_id,
15759 selection,
15760 cursor_shape,
15761 line_mode,
15762 participant_index,
15763 peer_id: collaborator.peer_id,
15764 user_name,
15765 })
15766 })
15767 }
15768
15769 pub fn hunks_for_ranges(
15770 &self,
15771 ranges: impl Iterator<Item = Range<Point>>,
15772 ) -> Vec<MultiBufferDiffHunk> {
15773 let mut hunks = Vec::new();
15774 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
15775 HashMap::default();
15776 for query_range in ranges {
15777 let query_rows =
15778 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
15779 for hunk in self.buffer_snapshot.diff_hunks_in_range(
15780 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
15781 ) {
15782 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
15783 // when the caret is just above or just below the deleted hunk.
15784 let allow_adjacent = hunk.status().is_removed();
15785 let related_to_selection = if allow_adjacent {
15786 hunk.row_range.overlaps(&query_rows)
15787 || hunk.row_range.start == query_rows.end
15788 || hunk.row_range.end == query_rows.start
15789 } else {
15790 hunk.row_range.overlaps(&query_rows)
15791 };
15792 if related_to_selection {
15793 if !processed_buffer_rows
15794 .entry(hunk.buffer_id)
15795 .or_default()
15796 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
15797 {
15798 continue;
15799 }
15800 hunks.push(hunk);
15801 }
15802 }
15803 }
15804
15805 hunks
15806 }
15807
15808 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
15809 self.display_snapshot.buffer_snapshot.language_at(position)
15810 }
15811
15812 pub fn is_focused(&self) -> bool {
15813 self.is_focused
15814 }
15815
15816 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
15817 self.placeholder_text.as_ref()
15818 }
15819
15820 pub fn scroll_position(&self) -> gpui::Point<f32> {
15821 self.scroll_anchor.scroll_position(&self.display_snapshot)
15822 }
15823
15824 fn gutter_dimensions(
15825 &self,
15826 font_id: FontId,
15827 font_size: Pixels,
15828 max_line_number_width: Pixels,
15829 cx: &App,
15830 ) -> Option<GutterDimensions> {
15831 if !self.show_gutter {
15832 return None;
15833 }
15834
15835 let descent = cx.text_system().descent(font_id, font_size);
15836 let em_width = cx.text_system().em_width(font_id, font_size).log_err()?;
15837 let em_advance = cx.text_system().em_advance(font_id, font_size).log_err()?;
15838
15839 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
15840 matches!(
15841 ProjectSettings::get_global(cx).git.git_gutter,
15842 Some(GitGutterSetting::TrackedFiles)
15843 )
15844 });
15845 let gutter_settings = EditorSettings::get_global(cx).gutter;
15846 let show_line_numbers = self
15847 .show_line_numbers
15848 .unwrap_or(gutter_settings.line_numbers);
15849 let line_gutter_width = if show_line_numbers {
15850 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
15851 let min_width_for_number_on_gutter = em_advance * 4.0;
15852 max_line_number_width.max(min_width_for_number_on_gutter)
15853 } else {
15854 0.0.into()
15855 };
15856
15857 let show_code_actions = self
15858 .show_code_actions
15859 .unwrap_or(gutter_settings.code_actions);
15860
15861 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
15862
15863 let git_blame_entries_width =
15864 self.git_blame_gutter_max_author_length
15865 .map(|max_author_length| {
15866 const MAX_RELATIVE_TIMESTAMP: &str = "60 minutes ago";
15867
15868 /// The number of characters to dedicate to gaps and margins.
15869 const SPACING_WIDTH: usize = 4;
15870
15871 let max_char_count = max_author_length
15872 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
15873 + ::git::SHORT_SHA_LENGTH
15874 + MAX_RELATIVE_TIMESTAMP.len()
15875 + SPACING_WIDTH;
15876
15877 em_advance * max_char_count
15878 });
15879
15880 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
15881 left_padding += if show_code_actions || show_runnables {
15882 em_width * 3.0
15883 } else if show_git_gutter && show_line_numbers {
15884 em_width * 2.0
15885 } else if show_git_gutter || show_line_numbers {
15886 em_width
15887 } else {
15888 px(0.)
15889 };
15890
15891 let right_padding = if gutter_settings.folds && show_line_numbers {
15892 em_width * 4.0
15893 } else if gutter_settings.folds {
15894 em_width * 3.0
15895 } else if show_line_numbers {
15896 em_width
15897 } else {
15898 px(0.)
15899 };
15900
15901 Some(GutterDimensions {
15902 left_padding,
15903 right_padding,
15904 width: line_gutter_width + left_padding + right_padding,
15905 margin: -descent,
15906 git_blame_entries_width,
15907 })
15908 }
15909
15910 pub fn render_crease_toggle(
15911 &self,
15912 buffer_row: MultiBufferRow,
15913 row_contains_cursor: bool,
15914 editor: Entity<Editor>,
15915 window: &mut Window,
15916 cx: &mut App,
15917 ) -> Option<AnyElement> {
15918 let folded = self.is_line_folded(buffer_row);
15919 let mut is_foldable = false;
15920
15921 if let Some(crease) = self
15922 .crease_snapshot
15923 .query_row(buffer_row, &self.buffer_snapshot)
15924 {
15925 is_foldable = true;
15926 match crease {
15927 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
15928 if let Some(render_toggle) = render_toggle {
15929 let toggle_callback =
15930 Arc::new(move |folded, window: &mut Window, cx: &mut App| {
15931 if folded {
15932 editor.update(cx, |editor, cx| {
15933 editor.fold_at(&crate::FoldAt { buffer_row }, window, cx)
15934 });
15935 } else {
15936 editor.update(cx, |editor, cx| {
15937 editor.unfold_at(
15938 &crate::UnfoldAt { buffer_row },
15939 window,
15940 cx,
15941 )
15942 });
15943 }
15944 });
15945 return Some((render_toggle)(
15946 buffer_row,
15947 folded,
15948 toggle_callback,
15949 window,
15950 cx,
15951 ));
15952 }
15953 }
15954 }
15955 }
15956
15957 is_foldable |= self.starts_indent(buffer_row);
15958
15959 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
15960 Some(
15961 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
15962 .toggle_state(folded)
15963 .on_click(window.listener_for(&editor, move |this, _e, window, cx| {
15964 if folded {
15965 this.unfold_at(&UnfoldAt { buffer_row }, window, cx);
15966 } else {
15967 this.fold_at(&FoldAt { buffer_row }, window, cx);
15968 }
15969 }))
15970 .into_any_element(),
15971 )
15972 } else {
15973 None
15974 }
15975 }
15976
15977 pub fn render_crease_trailer(
15978 &self,
15979 buffer_row: MultiBufferRow,
15980 window: &mut Window,
15981 cx: &mut App,
15982 ) -> Option<AnyElement> {
15983 let folded = self.is_line_folded(buffer_row);
15984 if let Crease::Inline { render_trailer, .. } = self
15985 .crease_snapshot
15986 .query_row(buffer_row, &self.buffer_snapshot)?
15987 {
15988 let render_trailer = render_trailer.as_ref()?;
15989 Some(render_trailer(buffer_row, folded, window, cx))
15990 } else {
15991 None
15992 }
15993 }
15994}
15995
15996impl Deref for EditorSnapshot {
15997 type Target = DisplaySnapshot;
15998
15999 fn deref(&self) -> &Self::Target {
16000 &self.display_snapshot
16001 }
16002}
16003
16004#[derive(Clone, Debug, PartialEq, Eq)]
16005pub enum EditorEvent {
16006 InputIgnored {
16007 text: Arc<str>,
16008 },
16009 InputHandled {
16010 utf16_range_to_replace: Option<Range<isize>>,
16011 text: Arc<str>,
16012 },
16013 ExcerptsAdded {
16014 buffer: Entity<Buffer>,
16015 predecessor: ExcerptId,
16016 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
16017 },
16018 ExcerptsRemoved {
16019 ids: Vec<ExcerptId>,
16020 },
16021 BufferFoldToggled {
16022 ids: Vec<ExcerptId>,
16023 folded: bool,
16024 },
16025 ExcerptsEdited {
16026 ids: Vec<ExcerptId>,
16027 },
16028 ExcerptsExpanded {
16029 ids: Vec<ExcerptId>,
16030 },
16031 BufferEdited,
16032 Edited {
16033 transaction_id: clock::Lamport,
16034 },
16035 Reparsed(BufferId),
16036 Focused,
16037 FocusedIn,
16038 Blurred,
16039 DirtyChanged,
16040 Saved,
16041 TitleChanged,
16042 DiffBaseChanged,
16043 SelectionsChanged {
16044 local: bool,
16045 },
16046 ScrollPositionChanged {
16047 local: bool,
16048 autoscroll: bool,
16049 },
16050 Closed,
16051 TransactionUndone {
16052 transaction_id: clock::Lamport,
16053 },
16054 TransactionBegun {
16055 transaction_id: clock::Lamport,
16056 },
16057 Reloaded,
16058 CursorShapeChanged,
16059}
16060
16061impl EventEmitter<EditorEvent> for Editor {}
16062
16063impl Focusable for Editor {
16064 fn focus_handle(&self, _cx: &App) -> FocusHandle {
16065 self.focus_handle.clone()
16066 }
16067}
16068
16069impl Render for Editor {
16070 fn render<'a>(&mut self, _: &mut Window, cx: &mut Context<'a, Self>) -> impl IntoElement {
16071 let settings = ThemeSettings::get_global(cx);
16072
16073 let mut text_style = match self.mode {
16074 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
16075 color: cx.theme().colors().editor_foreground,
16076 font_family: settings.ui_font.family.clone(),
16077 font_features: settings.ui_font.features.clone(),
16078 font_fallbacks: settings.ui_font.fallbacks.clone(),
16079 font_size: rems(0.875).into(),
16080 font_weight: settings.ui_font.weight,
16081 line_height: relative(settings.buffer_line_height.value()),
16082 ..Default::default()
16083 },
16084 EditorMode::Full => TextStyle {
16085 color: cx.theme().colors().editor_foreground,
16086 font_family: settings.buffer_font.family.clone(),
16087 font_features: settings.buffer_font.features.clone(),
16088 font_fallbacks: settings.buffer_font.fallbacks.clone(),
16089 font_size: settings.buffer_font_size().into(),
16090 font_weight: settings.buffer_font.weight,
16091 line_height: relative(settings.buffer_line_height.value()),
16092 ..Default::default()
16093 },
16094 };
16095 if let Some(text_style_refinement) = &self.text_style_refinement {
16096 text_style.refine(text_style_refinement)
16097 }
16098
16099 let background = match self.mode {
16100 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
16101 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
16102 EditorMode::Full => cx.theme().colors().editor_background,
16103 };
16104
16105 EditorElement::new(
16106 &cx.entity(),
16107 EditorStyle {
16108 background,
16109 local_player: cx.theme().players().local(),
16110 text: text_style,
16111 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
16112 syntax: cx.theme().syntax().clone(),
16113 status: cx.theme().status().clone(),
16114 inlay_hints_style: make_inlay_hints_style(cx),
16115 inline_completion_styles: make_suggestion_styles(cx),
16116 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
16117 },
16118 )
16119 }
16120}
16121
16122impl EntityInputHandler for Editor {
16123 fn text_for_range(
16124 &mut self,
16125 range_utf16: Range<usize>,
16126 adjusted_range: &mut Option<Range<usize>>,
16127 _: &mut Window,
16128 cx: &mut Context<Self>,
16129 ) -> Option<String> {
16130 let snapshot = self.buffer.read(cx).read(cx);
16131 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
16132 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
16133 if (start.0..end.0) != range_utf16 {
16134 adjusted_range.replace(start.0..end.0);
16135 }
16136 Some(snapshot.text_for_range(start..end).collect())
16137 }
16138
16139 fn selected_text_range(
16140 &mut self,
16141 ignore_disabled_input: bool,
16142 _: &mut Window,
16143 cx: &mut Context<Self>,
16144 ) -> Option<UTF16Selection> {
16145 // Prevent the IME menu from appearing when holding down an alphabetic key
16146 // while input is disabled.
16147 if !ignore_disabled_input && !self.input_enabled {
16148 return None;
16149 }
16150
16151 let selection = self.selections.newest::<OffsetUtf16>(cx);
16152 let range = selection.range();
16153
16154 Some(UTF16Selection {
16155 range: range.start.0..range.end.0,
16156 reversed: selection.reversed,
16157 })
16158 }
16159
16160 fn marked_text_range(&self, _: &mut Window, cx: &mut Context<Self>) -> Option<Range<usize>> {
16161 let snapshot = self.buffer.read(cx).read(cx);
16162 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
16163 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
16164 }
16165
16166 fn unmark_text(&mut self, _: &mut Window, cx: &mut Context<Self>) {
16167 self.clear_highlights::<InputComposition>(cx);
16168 self.ime_transaction.take();
16169 }
16170
16171 fn replace_text_in_range(
16172 &mut self,
16173 range_utf16: Option<Range<usize>>,
16174 text: &str,
16175 window: &mut Window,
16176 cx: &mut Context<Self>,
16177 ) {
16178 if !self.input_enabled {
16179 cx.emit(EditorEvent::InputIgnored { text: text.into() });
16180 return;
16181 }
16182
16183 self.transact(window, cx, |this, window, cx| {
16184 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
16185 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
16186 Some(this.selection_replacement_ranges(range_utf16, cx))
16187 } else {
16188 this.marked_text_ranges(cx)
16189 };
16190
16191 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
16192 let newest_selection_id = this.selections.newest_anchor().id;
16193 this.selections
16194 .all::<OffsetUtf16>(cx)
16195 .iter()
16196 .zip(ranges_to_replace.iter())
16197 .find_map(|(selection, range)| {
16198 if selection.id == newest_selection_id {
16199 Some(
16200 (range.start.0 as isize - selection.head().0 as isize)
16201 ..(range.end.0 as isize - selection.head().0 as isize),
16202 )
16203 } else {
16204 None
16205 }
16206 })
16207 });
16208
16209 cx.emit(EditorEvent::InputHandled {
16210 utf16_range_to_replace: range_to_replace,
16211 text: text.into(),
16212 });
16213
16214 if let Some(new_selected_ranges) = new_selected_ranges {
16215 this.change_selections(None, window, cx, |selections| {
16216 selections.select_ranges(new_selected_ranges)
16217 });
16218 this.backspace(&Default::default(), window, cx);
16219 }
16220
16221 this.handle_input(text, window, cx);
16222 });
16223
16224 if let Some(transaction) = self.ime_transaction {
16225 self.buffer.update(cx, |buffer, cx| {
16226 buffer.group_until_transaction(transaction, cx);
16227 });
16228 }
16229
16230 self.unmark_text(window, cx);
16231 }
16232
16233 fn replace_and_mark_text_in_range(
16234 &mut self,
16235 range_utf16: Option<Range<usize>>,
16236 text: &str,
16237 new_selected_range_utf16: Option<Range<usize>>,
16238 window: &mut Window,
16239 cx: &mut Context<Self>,
16240 ) {
16241 if !self.input_enabled {
16242 return;
16243 }
16244
16245 let transaction = self.transact(window, cx, |this, window, cx| {
16246 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
16247 let snapshot = this.buffer.read(cx).read(cx);
16248 if let Some(relative_range_utf16) = range_utf16.as_ref() {
16249 for marked_range in &mut marked_ranges {
16250 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
16251 marked_range.start.0 += relative_range_utf16.start;
16252 marked_range.start =
16253 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
16254 marked_range.end =
16255 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
16256 }
16257 }
16258 Some(marked_ranges)
16259 } else if let Some(range_utf16) = range_utf16 {
16260 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
16261 Some(this.selection_replacement_ranges(range_utf16, cx))
16262 } else {
16263 None
16264 };
16265
16266 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
16267 let newest_selection_id = this.selections.newest_anchor().id;
16268 this.selections
16269 .all::<OffsetUtf16>(cx)
16270 .iter()
16271 .zip(ranges_to_replace.iter())
16272 .find_map(|(selection, range)| {
16273 if selection.id == newest_selection_id {
16274 Some(
16275 (range.start.0 as isize - selection.head().0 as isize)
16276 ..(range.end.0 as isize - selection.head().0 as isize),
16277 )
16278 } else {
16279 None
16280 }
16281 })
16282 });
16283
16284 cx.emit(EditorEvent::InputHandled {
16285 utf16_range_to_replace: range_to_replace,
16286 text: text.into(),
16287 });
16288
16289 if let Some(ranges) = ranges_to_replace {
16290 this.change_selections(None, window, cx, |s| s.select_ranges(ranges));
16291 }
16292
16293 let marked_ranges = {
16294 let snapshot = this.buffer.read(cx).read(cx);
16295 this.selections
16296 .disjoint_anchors()
16297 .iter()
16298 .map(|selection| {
16299 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
16300 })
16301 .collect::<Vec<_>>()
16302 };
16303
16304 if text.is_empty() {
16305 this.unmark_text(window, cx);
16306 } else {
16307 this.highlight_text::<InputComposition>(
16308 marked_ranges.clone(),
16309 HighlightStyle {
16310 underline: Some(UnderlineStyle {
16311 thickness: px(1.),
16312 color: None,
16313 wavy: false,
16314 }),
16315 ..Default::default()
16316 },
16317 cx,
16318 );
16319 }
16320
16321 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
16322 let use_autoclose = this.use_autoclose;
16323 let use_auto_surround = this.use_auto_surround;
16324 this.set_use_autoclose(false);
16325 this.set_use_auto_surround(false);
16326 this.handle_input(text, window, cx);
16327 this.set_use_autoclose(use_autoclose);
16328 this.set_use_auto_surround(use_auto_surround);
16329
16330 if let Some(new_selected_range) = new_selected_range_utf16 {
16331 let snapshot = this.buffer.read(cx).read(cx);
16332 let new_selected_ranges = marked_ranges
16333 .into_iter()
16334 .map(|marked_range| {
16335 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
16336 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
16337 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
16338 snapshot.clip_offset_utf16(new_start, Bias::Left)
16339 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
16340 })
16341 .collect::<Vec<_>>();
16342
16343 drop(snapshot);
16344 this.change_selections(None, window, cx, |selections| {
16345 selections.select_ranges(new_selected_ranges)
16346 });
16347 }
16348 });
16349
16350 self.ime_transaction = self.ime_transaction.or(transaction);
16351 if let Some(transaction) = self.ime_transaction {
16352 self.buffer.update(cx, |buffer, cx| {
16353 buffer.group_until_transaction(transaction, cx);
16354 });
16355 }
16356
16357 if self.text_highlights::<InputComposition>(cx).is_none() {
16358 self.ime_transaction.take();
16359 }
16360 }
16361
16362 fn bounds_for_range(
16363 &mut self,
16364 range_utf16: Range<usize>,
16365 element_bounds: gpui::Bounds<Pixels>,
16366 window: &mut Window,
16367 cx: &mut Context<Self>,
16368 ) -> Option<gpui::Bounds<Pixels>> {
16369 let text_layout_details = self.text_layout_details(window);
16370 let gpui::Size {
16371 width: em_width,
16372 height: line_height,
16373 } = self.character_size(window);
16374
16375 let snapshot = self.snapshot(window, cx);
16376 let scroll_position = snapshot.scroll_position();
16377 let scroll_left = scroll_position.x * em_width;
16378
16379 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
16380 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
16381 + self.gutter_dimensions.width
16382 + self.gutter_dimensions.margin;
16383 let y = line_height * (start.row().as_f32() - scroll_position.y);
16384
16385 Some(Bounds {
16386 origin: element_bounds.origin + point(x, y),
16387 size: size(em_width, line_height),
16388 })
16389 }
16390
16391 fn character_index_for_point(
16392 &mut self,
16393 point: gpui::Point<Pixels>,
16394 _window: &mut Window,
16395 _cx: &mut Context<Self>,
16396 ) -> Option<usize> {
16397 let position_map = self.last_position_map.as_ref()?;
16398 if !position_map.text_hitbox.contains(&point) {
16399 return None;
16400 }
16401 let display_point = position_map.point_for_position(point).previous_valid;
16402 let anchor = position_map
16403 .snapshot
16404 .display_point_to_anchor(display_point, Bias::Left);
16405 let utf16_offset = anchor.to_offset_utf16(&position_map.snapshot.buffer_snapshot);
16406 Some(utf16_offset.0)
16407 }
16408}
16409
16410trait SelectionExt {
16411 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
16412 fn spanned_rows(
16413 &self,
16414 include_end_if_at_line_start: bool,
16415 map: &DisplaySnapshot,
16416 ) -> Range<MultiBufferRow>;
16417}
16418
16419impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
16420 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
16421 let start = self
16422 .start
16423 .to_point(&map.buffer_snapshot)
16424 .to_display_point(map);
16425 let end = self
16426 .end
16427 .to_point(&map.buffer_snapshot)
16428 .to_display_point(map);
16429 if self.reversed {
16430 end..start
16431 } else {
16432 start..end
16433 }
16434 }
16435
16436 fn spanned_rows(
16437 &self,
16438 include_end_if_at_line_start: bool,
16439 map: &DisplaySnapshot,
16440 ) -> Range<MultiBufferRow> {
16441 let start = self.start.to_point(&map.buffer_snapshot);
16442 let mut end = self.end.to_point(&map.buffer_snapshot);
16443 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
16444 end.row -= 1;
16445 }
16446
16447 let buffer_start = map.prev_line_boundary(start).0;
16448 let buffer_end = map.next_line_boundary(end).0;
16449 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
16450 }
16451}
16452
16453impl<T: InvalidationRegion> InvalidationStack<T> {
16454 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
16455 where
16456 S: Clone + ToOffset,
16457 {
16458 while let Some(region) = self.last() {
16459 let all_selections_inside_invalidation_ranges =
16460 if selections.len() == region.ranges().len() {
16461 selections
16462 .iter()
16463 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
16464 .all(|(selection, invalidation_range)| {
16465 let head = selection.head().to_offset(buffer);
16466 invalidation_range.start <= head && invalidation_range.end >= head
16467 })
16468 } else {
16469 false
16470 };
16471
16472 if all_selections_inside_invalidation_ranges {
16473 break;
16474 } else {
16475 self.pop();
16476 }
16477 }
16478 }
16479}
16480
16481impl<T> Default for InvalidationStack<T> {
16482 fn default() -> Self {
16483 Self(Default::default())
16484 }
16485}
16486
16487impl<T> Deref for InvalidationStack<T> {
16488 type Target = Vec<T>;
16489
16490 fn deref(&self) -> &Self::Target {
16491 &self.0
16492 }
16493}
16494
16495impl<T> DerefMut for InvalidationStack<T> {
16496 fn deref_mut(&mut self) -> &mut Self::Target {
16497 &mut self.0
16498 }
16499}
16500
16501impl InvalidationRegion for SnippetState {
16502 fn ranges(&self) -> &[Range<Anchor>] {
16503 &self.ranges[self.active_index]
16504 }
16505}
16506
16507pub fn diagnostic_block_renderer(
16508 diagnostic: Diagnostic,
16509 max_message_rows: Option<u8>,
16510 allow_closing: bool,
16511 _is_valid: bool,
16512) -> RenderBlock {
16513 let (text_without_backticks, code_ranges) =
16514 highlight_diagnostic_message(&diagnostic, max_message_rows);
16515
16516 Arc::new(move |cx: &mut BlockContext| {
16517 let group_id: SharedString = cx.block_id.to_string().into();
16518
16519 let mut text_style = cx.window.text_style().clone();
16520 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
16521 let theme_settings = ThemeSettings::get_global(cx);
16522 text_style.font_family = theme_settings.buffer_font.family.clone();
16523 text_style.font_style = theme_settings.buffer_font.style;
16524 text_style.font_features = theme_settings.buffer_font.features.clone();
16525 text_style.font_weight = theme_settings.buffer_font.weight;
16526
16527 let multi_line_diagnostic = diagnostic.message.contains('\n');
16528
16529 let buttons = |diagnostic: &Diagnostic| {
16530 if multi_line_diagnostic {
16531 v_flex()
16532 } else {
16533 h_flex()
16534 }
16535 .when(allow_closing, |div| {
16536 div.children(diagnostic.is_primary.then(|| {
16537 IconButton::new("close-block", IconName::XCircle)
16538 .icon_color(Color::Muted)
16539 .size(ButtonSize::Compact)
16540 .style(ButtonStyle::Transparent)
16541 .visible_on_hover(group_id.clone())
16542 .on_click(move |_click, window, cx| {
16543 window.dispatch_action(Box::new(Cancel), cx)
16544 })
16545 .tooltip(|window, cx| {
16546 Tooltip::for_action("Close Diagnostics", &Cancel, window, cx)
16547 })
16548 }))
16549 })
16550 .child(
16551 IconButton::new("copy-block", IconName::Copy)
16552 .icon_color(Color::Muted)
16553 .size(ButtonSize::Compact)
16554 .style(ButtonStyle::Transparent)
16555 .visible_on_hover(group_id.clone())
16556 .on_click({
16557 let message = diagnostic.message.clone();
16558 move |_click, _, cx| {
16559 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
16560 }
16561 })
16562 .tooltip(Tooltip::text("Copy diagnostic message")),
16563 )
16564 };
16565
16566 let icon_size = buttons(&diagnostic).into_any_element().layout_as_root(
16567 AvailableSpace::min_size(),
16568 cx.window,
16569 cx.app,
16570 );
16571
16572 h_flex()
16573 .id(cx.block_id)
16574 .group(group_id.clone())
16575 .relative()
16576 .size_full()
16577 .block_mouse_down()
16578 .pl(cx.gutter_dimensions.width)
16579 .w(cx.max_width - cx.gutter_dimensions.full_width())
16580 .child(
16581 div()
16582 .flex()
16583 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
16584 .flex_shrink(),
16585 )
16586 .child(buttons(&diagnostic))
16587 .child(div().flex().flex_shrink_0().child(
16588 StyledText::new(text_without_backticks.clone()).with_highlights(
16589 &text_style,
16590 code_ranges.iter().map(|range| {
16591 (
16592 range.clone(),
16593 HighlightStyle {
16594 font_weight: Some(FontWeight::BOLD),
16595 ..Default::default()
16596 },
16597 )
16598 }),
16599 ),
16600 ))
16601 .into_any_element()
16602 })
16603}
16604
16605fn inline_completion_edit_text(
16606 current_snapshot: &BufferSnapshot,
16607 edits: &[(Range<Anchor>, String)],
16608 edit_preview: &EditPreview,
16609 include_deletions: bool,
16610 cx: &App,
16611) -> HighlightedText {
16612 let edits = edits
16613 .iter()
16614 .map(|(anchor, text)| {
16615 (
16616 anchor.start.text_anchor..anchor.end.text_anchor,
16617 text.clone(),
16618 )
16619 })
16620 .collect::<Vec<_>>();
16621
16622 edit_preview.highlight_edits(current_snapshot, &edits, include_deletions, cx)
16623}
16624
16625pub fn highlight_diagnostic_message(
16626 diagnostic: &Diagnostic,
16627 mut max_message_rows: Option<u8>,
16628) -> (SharedString, Vec<Range<usize>>) {
16629 let mut text_without_backticks = String::new();
16630 let mut code_ranges = Vec::new();
16631
16632 if let Some(source) = &diagnostic.source {
16633 text_without_backticks.push_str(source);
16634 code_ranges.push(0..source.len());
16635 text_without_backticks.push_str(": ");
16636 }
16637
16638 let mut prev_offset = 0;
16639 let mut in_code_block = false;
16640 let has_row_limit = max_message_rows.is_some();
16641 let mut newline_indices = diagnostic
16642 .message
16643 .match_indices('\n')
16644 .filter(|_| has_row_limit)
16645 .map(|(ix, _)| ix)
16646 .fuse()
16647 .peekable();
16648
16649 for (quote_ix, _) in diagnostic
16650 .message
16651 .match_indices('`')
16652 .chain([(diagnostic.message.len(), "")])
16653 {
16654 let mut first_newline_ix = None;
16655 let mut last_newline_ix = None;
16656 while let Some(newline_ix) = newline_indices.peek() {
16657 if *newline_ix < quote_ix {
16658 if first_newline_ix.is_none() {
16659 first_newline_ix = Some(*newline_ix);
16660 }
16661 last_newline_ix = Some(*newline_ix);
16662
16663 if let Some(rows_left) = &mut max_message_rows {
16664 if *rows_left == 0 {
16665 break;
16666 } else {
16667 *rows_left -= 1;
16668 }
16669 }
16670 let _ = newline_indices.next();
16671 } else {
16672 break;
16673 }
16674 }
16675 let prev_len = text_without_backticks.len();
16676 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
16677 text_without_backticks.push_str(new_text);
16678 if in_code_block {
16679 code_ranges.push(prev_len..text_without_backticks.len());
16680 }
16681 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
16682 in_code_block = !in_code_block;
16683 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
16684 text_without_backticks.push_str("...");
16685 break;
16686 }
16687 }
16688
16689 (text_without_backticks.into(), code_ranges)
16690}
16691
16692fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
16693 match severity {
16694 DiagnosticSeverity::ERROR => colors.error,
16695 DiagnosticSeverity::WARNING => colors.warning,
16696 DiagnosticSeverity::INFORMATION => colors.info,
16697 DiagnosticSeverity::HINT => colors.info,
16698 _ => colors.ignored,
16699 }
16700}
16701
16702pub fn styled_runs_for_code_label<'a>(
16703 label: &'a CodeLabel,
16704 syntax_theme: &'a theme::SyntaxTheme,
16705) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
16706 let fade_out = HighlightStyle {
16707 fade_out: Some(0.35),
16708 ..Default::default()
16709 };
16710
16711 let mut prev_end = label.filter_range.end;
16712 label
16713 .runs
16714 .iter()
16715 .enumerate()
16716 .flat_map(move |(ix, (range, highlight_id))| {
16717 let style = if let Some(style) = highlight_id.style(syntax_theme) {
16718 style
16719 } else {
16720 return Default::default();
16721 };
16722 let mut muted_style = style;
16723 muted_style.highlight(fade_out);
16724
16725 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
16726 if range.start >= label.filter_range.end {
16727 if range.start > prev_end {
16728 runs.push((prev_end..range.start, fade_out));
16729 }
16730 runs.push((range.clone(), muted_style));
16731 } else if range.end <= label.filter_range.end {
16732 runs.push((range.clone(), style));
16733 } else {
16734 runs.push((range.start..label.filter_range.end, style));
16735 runs.push((label.filter_range.end..range.end, muted_style));
16736 }
16737 prev_end = cmp::max(prev_end, range.end);
16738
16739 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
16740 runs.push((prev_end..label.text.len(), fade_out));
16741 }
16742
16743 runs
16744 })
16745}
16746
16747pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
16748 let mut prev_index = 0;
16749 let mut prev_codepoint: Option<char> = None;
16750 text.char_indices()
16751 .chain([(text.len(), '\0')])
16752 .filter_map(move |(index, codepoint)| {
16753 let prev_codepoint = prev_codepoint.replace(codepoint)?;
16754 let is_boundary = index == text.len()
16755 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
16756 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
16757 if is_boundary {
16758 let chunk = &text[prev_index..index];
16759 prev_index = index;
16760 Some(chunk)
16761 } else {
16762 None
16763 }
16764 })
16765}
16766
16767pub trait RangeToAnchorExt: Sized {
16768 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
16769
16770 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
16771 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
16772 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
16773 }
16774}
16775
16776impl<T: ToOffset> RangeToAnchorExt for Range<T> {
16777 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
16778 let start_offset = self.start.to_offset(snapshot);
16779 let end_offset = self.end.to_offset(snapshot);
16780 if start_offset == end_offset {
16781 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
16782 } else {
16783 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
16784 }
16785 }
16786}
16787
16788pub trait RowExt {
16789 fn as_f32(&self) -> f32;
16790
16791 fn next_row(&self) -> Self;
16792
16793 fn previous_row(&self) -> Self;
16794
16795 fn minus(&self, other: Self) -> u32;
16796}
16797
16798impl RowExt for DisplayRow {
16799 fn as_f32(&self) -> f32 {
16800 self.0 as f32
16801 }
16802
16803 fn next_row(&self) -> Self {
16804 Self(self.0 + 1)
16805 }
16806
16807 fn previous_row(&self) -> Self {
16808 Self(self.0.saturating_sub(1))
16809 }
16810
16811 fn minus(&self, other: Self) -> u32 {
16812 self.0 - other.0
16813 }
16814}
16815
16816impl RowExt for MultiBufferRow {
16817 fn as_f32(&self) -> f32 {
16818 self.0 as f32
16819 }
16820
16821 fn next_row(&self) -> Self {
16822 Self(self.0 + 1)
16823 }
16824
16825 fn previous_row(&self) -> Self {
16826 Self(self.0.saturating_sub(1))
16827 }
16828
16829 fn minus(&self, other: Self) -> u32 {
16830 self.0 - other.0
16831 }
16832}
16833
16834trait RowRangeExt {
16835 type Row;
16836
16837 fn len(&self) -> usize;
16838
16839 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
16840}
16841
16842impl RowRangeExt for Range<MultiBufferRow> {
16843 type Row = MultiBufferRow;
16844
16845 fn len(&self) -> usize {
16846 (self.end.0 - self.start.0) as usize
16847 }
16848
16849 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
16850 (self.start.0..self.end.0).map(MultiBufferRow)
16851 }
16852}
16853
16854impl RowRangeExt for Range<DisplayRow> {
16855 type Row = DisplayRow;
16856
16857 fn len(&self) -> usize {
16858 (self.end.0 - self.start.0) as usize
16859 }
16860
16861 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
16862 (self.start.0..self.end.0).map(DisplayRow)
16863 }
16864}
16865
16866/// If select range has more than one line, we
16867/// just point the cursor to range.start.
16868fn collapse_multiline_range(range: Range<Point>) -> Range<Point> {
16869 if range.start.row == range.end.row {
16870 range
16871 } else {
16872 range.start..range.start
16873 }
16874}
16875pub struct KillRing(ClipboardItem);
16876impl Global for KillRing {}
16877
16878const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);
16879
16880fn all_edits_insertions_or_deletions(
16881 edits: &Vec<(Range<Anchor>, String)>,
16882 snapshot: &MultiBufferSnapshot,
16883) -> bool {
16884 let mut all_insertions = true;
16885 let mut all_deletions = true;
16886
16887 for (range, new_text) in edits.iter() {
16888 let range_is_empty = range.to_offset(&snapshot).is_empty();
16889 let text_is_empty = new_text.is_empty();
16890
16891 if range_is_empty != text_is_empty {
16892 if range_is_empty {
16893 all_deletions = false;
16894 } else {
16895 all_insertions = false;
16896 }
16897 } else {
16898 return false;
16899 }
16900
16901 if !all_insertions && !all_deletions {
16902 return false;
16903 }
16904 }
16905 all_insertions || all_deletions
16906}